| SOUTHWESTERN ENERGY CO      ITEM 1A  RISK FACTORS       In  addition  to the other information included in this Form 10-K, the     following risk factors should be considered in evaluating our business and     future prospects | 
    
      | The risk factors described below are not necessarily     exhaustive and investors are encouraged to perform their own investigation     with respect to us and our business | 
    
      | Investors should also read the other     information included in this Form 10-K, including our financial statements     and the related notes and “Management’s Discussion and Analysis of Financial     Condition and Results of Operations - - Forward-Looking Information | 
    
      | Volatility in natural gas and oil     prices can adversely affect our results and the price of our common stock | 
    
      | This  volatility also makes valuation of natural gas and oil producing     properties difficult and can disrupt markets | 
    
      | Natural  gas  and oil prices have historically been, and are likely to     continue to be, volatile | 
    
      | The prices for natural gas and oil are subject to     wide fluctuation in response to a number of factors, including:       ·       relatively minor changes in the supply of and demand for natural gas and     oil;       ·       market uncertainty;       ·       worldwide economic conditions;       ·       weather conditions;       ·       import prices;       ·       political conditions in major oil producing regions, especially the Middle     East;       ·       actions taken by OPEC;       ·       competition from other sources of energy; and       ·       economic, political and regulatory developments | 
    
      | Price volatility makes it difficult to budget and project the return on     exploration and development projects involving our natural gas and oil     properties and to estimate with precision the value of producing properties     that we may own or propose to acquire | 
    
      | In addition, unusually volatile     prices often disrupt the market for natural gas and oil properties, as     buyers and sellers have more difficulty agreeing on the purchase price of     properties | 
    
      | Our quarterly results of operations may fluctuate significantly     as a result of, among other things, variations in natural gas and oil prices     and production performance | 
    
      | In recent years, natural gas and oil price     volatility has become increasingly severe | 
    
      | A substantial or extended decline in natural gas and oil prices would have a     material adverse affect on us | 
    
      | Natural gas and oil prices have recently been at or near their highest     historical levels | 
    
      | A substantial or extended decline in natural gas and oil     prices would have a material adverse effect on our financial position, our     results of operations, our access to capital and the quantities of natural     gas and oil that may be economically produced by us | 
    
      | A significant decrease     in price levels for an extended period would negatively affect us in several     ways including:       ·       our cash flow would be reduced, decreasing funds available for capital     expenditures employed to replace reserves or increase production;       ·       certain reserves would no longer be economic to produce, leading to both     lower proved reserves and cash flow; and       ·       access  to  other sources of capital, such as equity or long-term debt     markets, could be severely limited or unavailable | 
    
      | Consequently, our revenues and profitability would suffer | 
    
      | Lower  natural  gas and oil prices may cause us to record ceiling test     write-downs | 
    
      | We  use the full cost method of accounting for our natural gas and oil     operations | 
    
      | Accordingly, we capitalize the cost to acquire, explore for and     develop natural gas and oil properties | 
    
      | Under the full cost accounting     rules of the SEC, the capitalized costs of natural gas and oil properties -     net of accumulated depreciation, depletion and amortization, and deferred     income taxes - may not exceed a “ceiling limit | 
    
      | ”  This is equal to the     present value of estimated future net cash       24 SWN       _________________________________________________________________       [103]Table of Contents         flows from proved natural gas and oil reserves, discounted at 10 percent,     plus the lower of cost or fair value of unproved properties included in the     costs being amortized, net of related tax effects | 
    
      | These rules generally require pricing future natural gas and oil production     at the unescalated natural gas and oil prices in effect at the end of each     fiscal quarter, including the impact of derivatives qualifying as hedges | 
    
      | They also require a write-down if the ceiling limit is exceeded, even if     prices declined for only a short period of time | 
    
      | If natural gas and oil prices fall significantly, a write-down may occur | 
    
      | Write-downs required by these rules do not impact cash flow from operating     activities but do reduce net income and shareholders &apos  equity | 
    
      | We may have difficulty financing our planned capital expenditures which     could adversely affect our growth | 
    
      | We have experienced and expect to continue to experience substantial capital     expenditure and working capital needs, particularly as a result of our     drilling program | 
    
      | Our planned capital expenditures for 2006 are expected to     significantly exceed the net cash generated by our operations | 
    
      | We expect to     borrow under our credit facility to fund capital expenditures that are in     excess of our net cash flow and the remaining proceeds of our 2005 equity     offering | 
    
      | Our ability to borrow under our credit facility is subject to     certain conditions | 
    
      | At December 31, 2005, we were in compliance with the     borrowing conditions of our credit facility | 
    
      | If we are not in compliance     with the terms of our credit facility in the future, we may not be able to     borrow under it to fund our capital expenditures | 
    
      | We also cannot be certain     that other additional financing will be available to us on acceptable terms     or at all | 
    
      | In the event additional capital resources are unavailable, we     may curtail our drilling, development and other activities or be forced to     sell some of our assets on an untimely or unfavorable basis | 
    
      | Any such     curtailment or sale could have a material adverse effect on our results and     future operations | 
    
      | Although our estimated natural gas and oil reserve data is independently     audited, our estimates may still prove to be inaccurate | 
    
      | Our reserve data represents the estimates of our reservoir engineers made     under the supervision of our management | 
    
      | Our reserve estimates are audited     each year by Netherland, Sewell & Associates, Inc, an independent petroleum     engineering firm | 
    
      | In conducting its audit, the engineers and geologists of     Netherland, Sewell & Associates study our major properties in detail and     independently develop reserve estimates | 
    
      | may differ significantly on an individual property     basis from our estimates | 
    
      | When, in the aggregate, such differences are     within 10prca, Netherland, Sewell & Associates, Inc | 
    
      | is generally satisfied     that the estimates of proved reserves are reasonable | 
    
      | Reserve estimates are prepared for each of our properties annually by the     reservoir engineers assigned to the asset management team in the geographic     locations in which the property is located | 
    
      | These estimates are reviewed by     senior engineers who are not part of the asset management teams and by the     president of our E&P subsidiaries | 
    
      | There are numerous     uncertainties  and risks that are inherent in estimating quantities of     natural gas and oil reserves and projecting future rates of production and     timing of development expenditures as many factors are beyond our control | 
    
      | We incorporate many factors and assumptions into our estimates including:       ·       expected reservoir characteristics based on geological, geophysical and     engineering assessments;       ·       future production rates based on historical performance and expected future     operating and investment activities;       ·       future oil and gas prices and quality and locational differentials; and       ·       future development and operating costs | 
    
      | Although we believe our assumptions are reasonable based on the information     available to us at the time we prepare our estimates, our actual results     could vary considerably from estimated quantities of proved natural gas and     oil reserves (in the aggregate and for a particular geographic location),     production, revenues, taxes and development and operating expenditures | 
    
      | In     addition, our estimates of reserves may be subject to downward or upward     revision based upon production history, results of future exploration and     development,  prevailing  natural  gas  and  oil prices, operating and     development  costs  and other factors | 
    
      | In 2003, reserves were revised     downward by 15dtta5 Bcfe due to poorer-than-expected well performance related     to our South Louisiana properties | 
    
      | In 2004, the reserves were also revised     downward by 12dtta7 Bcfe due primarily to slightly higher decline rates related     to some of the wells in our Overton Field in East Texas | 
    
      | In 200 5, our     reserves were revised downward by 31dtta7 Bcfe, primarily due to continued     unexpected declines associated with our Gulf Coast properties and minor     changes  to  decline  rates for our wells at the Overton Field | 
    
      | These     revisions represented no           25 SWN       _________________________________________________________________       [104]Table of Contents         greater than 4prca of our total reserve estimates in each of these years, which     we believe is indicative of the effectiveness of our internal controls | 
    
      | Because we review our reserve projections for every property at the end of     every  year,  any material change in a reserve estimate is included in     subsequent reserve reports | 
    
      | Finally, recovery of undeveloped reserves generally requires significant     capital expenditures and successful drilling operations | 
    
      | At December 31,     2005, approximately 27prca of our estimated proved reserves were undeveloped | 
    
      | Our reserve data assume that we can and will make these expenditures and     conduct these operations successfully, which may not occur | 
    
      | Please read     “Management’s Discussion and Analysis of Financial Condition and Results of     Operations - -  Forward-Looking Information” in Item 7A of Part II of this     Form 10-K for additional information regarding the uncertainty of reserve     estimates | 
    
      | Our future level of indebtedness may adversely affect operations and limit     our growth | 
    
      | At December 31, 2005, we had long-term indebtedness of dlra100dtta0 million,     excluding our several guarantee of NOARK’s debt obligation, none of which     was indebtedness under our revolving credit facility | 
    
      | As of February 20,     2006, no bank indebtedness was outstanding under our existing dlra500 million     revolving credit facility | 
    
      | However, as indicated in the risk factor headed     “We may have difficulty financing our planned capital expenditures which     could  adversely  affect  our  growth”  above, we also expect to incur     significant additional indebtedness in order to fund a portion of capital     expenditures in 2006 | 
    
      | The terms of the indenture relating to our outstanding senior notes and our     revolving credit facility impose significant restrictions on our ability     and, in some cases, the ability of our subsidiaries to take a number of     actions that we may otherwise desire to take, including:       ·       incurring additional debt, including guarantees of indebtedness;       ·       redeeming stock or redeeming debt;       ·       making investments;       ·       creating liens on our assets; and       ·       selling assets | 
    
      | Our level of indebtedness, and the covenants contained in the agreements     governing our debt, could have important consequences for our operations,     including:       ·       requiring  us  to dedicate a substantial portion of our cash flow from     operations to required payments on debt, thereby reducing the availability     of cash flow for working capital, capital expenditures and other general     business activities;       ·       limiting  our ability to obtain additional financing in the future for     working capital, capital expenditures, acquisitions and general corporate     and other activities;       ·       limiting our flexibility in planning for, or reacting to, changes in our     business and the industry in which we operate; and       ·       detracting from our ability to successfully withstand a downturn in our     business or the economy generally | 
    
      | Our ability to comply with the covenants and other restrictions in the     agreements governing our debt may be affected by events beyond our control,     including prevailing economic and financial conditions | 
    
      | If we fail to     comply with the covenants and other restrictions, it could lead to an event     of default and the acceleration of our repayment of outstanding debt | 
    
      | We     may not have sufficient funds to make such repayments | 
    
      | If we are unable to     repay our debt out of cash on hand, we could attempt to refinance such debt,     sell assets or repay such debt with the proceeds from an equity offering | 
    
      | We cannot assure you that we will be able to generate sufficient cash flow     to pay the interest on our debt or that future borrowings, equity financings     or proceeds from the sale of assets will be available to pay or refinance     such debt | 
    
      | The terms of our debt, including our credit facility and our     indentures, may also pr ohibit us from taking such actions | 
    
      | Factors that     will affect our ability to raise cash through an offering of our capital     stock, a refinancing of our debt or a sale of assets include financial     market conditions and our market value and operating performance at the time     of such offering or other financing | 
    
      | We cannot assure you that any such     proposed  offering,  refinancing or sale of assets can be successfully     completed or, if completed, that the terms will be favorable to us | 
    
      | 26 SWN       _________________________________________________________________       [105]Table of Contents       If  we  fail  to find or acquire additional reserves, our reserves and     production will decline materially from their current levels | 
    
      | The  rate  of production from natural gas and oil properties generally     declines as reserves are depleted | 
    
      | Except to the extent that we acquire     additional  properties  containing proved reserves, conduct successful     exploration and development activities, successfully apply new technologies     or, through engineering studies, identify additional behind-pipe zones or     secondary recovery reserves, our proved reserves will decline materially as     reserves are produced | 
    
      | Future natural gas and oil production is, therefore,     highly  dependent  upon  our  level of success in acquiring or finding     additional reserves | 
    
      | Our drilling plans for the Fayetteville Shale play are subject to change | 
    
      | As of December 31, 2005, we have spud 88 wells relating to our Fayetteville     Shale play | 
    
      | The wells were drilled in areas that represent a very small     sample of our large acreage position | 
    
      | Our drilling plans with respect to our     Fayetteville Shale play are flexible and are dependent upon a number of     factors, including the extent to which we can replicate the results of our     most successful Fayetteville Shale wells on our other Fayetteville Shale     acreage as well as the natural gas and oil commodity price environment | 
    
      | The     determination  as  to  whether  we  continue to drill prospects in the     Fayetteville Shale may depend on any one or more of the following factors:       ·       our  ability  to  determine  the  most effective and economic fracture     stimulation for the Fayetteville Shale formation;       ·       material changes in natural gas prices;       ·       changes in the estimates of costs to drill or complete wells;       ·       the extent of our success in drilling and completing horizontal wells;       ·       our ability to reduce our exposure to costs and drilling risks;       ·       the costs and availability of drilling equipment;       ·       success or failure of wells drilled in similar formations or which would use     the same production facilities;       ·       receipt of additional seismic or other geologic data or reprocessing of     existing data;       ·       the extent to which we are able to effectively operate the drillings rigs we     acquire; or       ·       availability and cost of capital | 
    
      | We continue to gather data about our prospects in the Fayetteville Shale,     and it is possible that additional information may cause us to alter our     drilling schedule or determine that prospects in some portion of our acreage     position should not be pursued at all | 
    
      | We may have difficulty drilling all of the wells that are necessary to hold     our Fayetteville Shale acreage before the initial lease terms expire, which     could result in the loss of certain leasehold rights | 
    
      | Approximately 25cmam737 net acres of our Fayetteville Shale acreage will expire     in the next three years if we do not drill successful wells to develop the     acreage or otherwise take action to extend the leases | 
    
      | As discussed above     under “Our drilling plans for the Fayetteville Shale play are subject to     change,” our ability to drill wells may depend on a number of factors,     including certain factors that are beyond our control | 
    
      | The number of wells     we  will  be  required to drill to retain our leasehold rights will be     determined by field rules established by the Arkansas Oil and Gas Commission     or the AOGC  Through February 20, 2006, the AOGC has approved field rules     for five of our fields in the Fayetteville Shale play, establishing drilling     units of 640 acres and well spacing requirements within each drilling unit     of 560 feet minimum distance between completions in common sources of supply     within the Fayetteville Shale formation, up to a maximum of 25 wells per     drilling unit | 
    
      | There can be no assurance that we will be successful in     obtaining  the same size drilling unit or the same spacing within each     drilling unit in the field rules for our other pilot areas or for our other     Fayetteville Shale acreage as a whole | 
    
      | To the extent that the field rules     for our other pilot areas or our other Fayetteville Shale acreage are less     favorable, we may not be able to drill the wells required to maintain our     leasehold rights for certain of our Fayetteville Shale acreage | 
    
      | If our Fayetteville Shale drilling program fails to produce a significant     supply of natural gas, our investments in our gas gathering operations could     be lost, which could have an adverse effect on our results of operations,     financial condition and cash flows | 
    
      | 27 SWN       _________________________________________________________________       [106]Table of Contents       As of December 31, 2005, we had invested approximately dlra15dtta8 million in our     gas gathering operations and we intend to invest approximately dlra37dtta5 million     in 2006 | 
    
      | Our gas gathering business will largely rely on gas sourced in our     Fayetteville  Shale  play area in Arkansas | 
    
      | If our Fayetteville Shale     drilling program fails to produce a significant supply of natural gas, our     investments in our gas gathering operations could be lost, which could have     an adverse effect on our results of operations, financial condition and cash     flows | 
    
      | Our exploration, development and drilling efforts and our operations of our     wells may not be profitable or achieve our targeted returns | 
    
      | We require significant amounts of undeveloped leasehold acreage in order to     further our development efforts | 
    
      | Exploration, development, drilling and     production activities are subject to many risks, including the risk that no     commercially  productive  reservoirs will be discovered | 
    
      | We invest in     property, including undeveloped leasehold acreage that we believe will     result in projects that will add value over time | 
    
      | However, we cannot assure     you that all prospects will result in viable projects or that we will not     abandon our initial investments | 
    
      | Additionally, there can be no assurance     that leasehold acreage acquired by us will be profitably developed, that new     wells drilled by us in prospects that we pursue will be productive or that     we will recover all or any portion of our investment in such leasehold     acreage or wells | 
    
      | In addition, wells that are profitable     may not achieve our targeted rate of return | 
    
      | Our ability to achieve our     target PVI results are dependent upon the current and future market prices     for natural gas and crude oil, costs associated with producing natural gas     and crude oil and our ability to add reserves at an acceptable cost | 
    
      | We     rely to a significant extent on seismic data and other advanced technologies     in identifying leasehold acreage prospects and in conducting our exploration     activities | 
    
      | The seismic data and other technologies we use do not allow us     to know conclusively prior to acquisition of leasehold acreage or drilling a     well whether natural gas or oil is present or may be produced economically | 
    
      | The  use of seismic data and other technologies also requires greater     pre-drilling expenditures than traditional drilling strategies | 
    
      | In addition, we may not be successful in implementing our business strategy     of controlling and reducing our drilling and production costs in order to     improve our overall return | 
    
      | The cost of drilling, completing and operating     a  well  is often uncertain, and cost factors can adversely affect the     economics of a project | 
    
      | Further, our drilling operations may be curtailed,     delayed or canceled as a result of numerous factors, including unexpected     drilling  conditions,  title  problems,  pressure or irregularities in     formations, equipment failures or accidents, adverse weather conditions,     environmental  and other governmental requirements and the cost of, or     shortages or delays in the availability of, drilling rigs, equipment and     services | 
    
      | We incur substantial costs to comply with government regulations, especially     regulations relating to environmental protection, and could incur even     greater costs in the future | 
    
      | Our exploration, production, development and gas distribution and marketing     operations are regulated extensively at the federal, state and local levels | 
    
      | We have made and will continue to make large expenditures in our efforts to     comply with these regulations, including environmental regulation | 
    
      | The     natural gas and oil regulatory environment could change in ways that might     substantially increase these costs | 
    
      | Hydrocarbon-producing states regulate     conservation practices and the protection of correlative rights | 
    
      | These     regulations affect our operations and limit the quantity of hydrocarbons we     may produce and sell | 
    
      | In addition, at the US federal level, the Federal     Energy Regulatory Commission regulates interstate transportation of natural     gas under the Natural Gas Act | 
    
      | Other regulated matters include marketing,     pricing, transportation and valuation of royalty payments | 
    
      | As an owner or lessee and operator of natural gas and oil properties, and an     owner  of gas gathering, transmission and distribution systems, we are     subject  to  various  federal, state and local regulations relating to     discharge of materials into, and protection of, the environment | 
    
      | These     regulations may, among other things, impose liability on us for the cost of     pollution clean-up resulting from operations, subject us to liability for     pollution damages, and require suspension or cessation of operations in     affected  areas | 
    
      | Changes in or additions to regulations regarding the     protection of the environment could significantly increase our costs of     compliance, or otherwise adversely affect our business | 
    
      | One of the responsibilities of owning and operating natural gas and oil     properties is paying for the cost of abandonment | 
    
      | Effective January 1,     2003, companies were required to reflect abandonment costs as a liability on     their balance sheets | 
    
      | We may incur significant abandonment costs in the     future which could adversely affect our financial results | 
    
      | 28 SWN       _________________________________________________________________       [107]Table of Contents         Natural gas and oil drilling and producing operations involve various risks | 
    
      | Our  operations  are subject to all the risks normally incident to the     operation and development of natural gas and oil properties and the drilling     of  natural  gas  and oil wells, including encountering well blowouts,     cratering and explosions, pipe failure, fires, formations with abnormal     pressures, uncontrollable flows of oil, natural gas, brine or well fluids,     release of contaminants into the environment and other environmental hazards     and risks | 
    
      | We maintain insurance against many potential losses or liabilities arising     from our operations in accordance with customary industry practices and in     amounts that we believe to be prudent | 
    
      | However, our insurance does not     protect us against all operational risks | 
    
      | For example, we do not maintain     business interruption insurance | 
    
      | Additionally, pollution and environmental     risks generally are not fully insurable | 
    
      | These risks could give rise to     significant  costs not covered by insurance that could have a material     adverse effect upon our financial results | 
    
      | We cannot control activities on properties we do not operate | 
    
      | Failure to     fund capital expenditure requirements may result in reduction or forfeiture     of our interests in some of our non-operated projects | 
    
      | We do not operate some of the properties in which we have an interest and we     have  limited  ability to exercise influence over operations for these     properties or their associated costs | 
    
      | Approximately 22prca of our gas and oil     properties, based on PV10 value, are operated by other companies | 
    
      | Our     dependence on the operator and other working interest owners for these     projects and our limited ability to influence operations and associated     costs could materially adversely affect the realization of our targeted     returns on capital in drilling or acquisition activities and our targeted     production growth rate | 
    
      | The success and timing of drilling, development and     exploitation activities on properties operated by others depend on a number     of factors that are beyond our control, including the operatorapstas expertise     and financial resources, approval of other participants for drilling wells     and utilization of technology | 
    
      | When we are not the majority owner or operator of a particular natural gas     or oil project, we may have no control over the timing or amount of capital     expenditures associated with such project | 
    
      | If we are not willing or able to     fund our capital expenditures relating to such projects when required by the     majority owner or operator, our interests in these projects may be reduced     or forfeited | 
    
      | Shortages of oil field equipment, services and qualified personnel could     adversely affect our results of operations | 
    
      | The demand for qualified and experienced field personnel to drill wells and     conduct field operations, geologists, geophysicists, engineers and other     professionals  in  the  natural  gas  and  oil  industry can fluctuate     significantly, often in correlation with natural gas and oil prices, causing     periodic shortages | 
    
      | There have also been shortages of drilling rigs and     other equipment, as demand for rigs and equipment has increased along with     the number of wells being drilled | 
    
      | These factors also cause significant     increases in costs for equipment, services and personnel | 
    
      | Higher natural     gas  and oil prices generally stimulate increased demand and result in     increased prices for drilling rigs, crews and associated supplies, equipment     and services | 
    
      | We cannot be certain when we will experience shortages or     price increases, which could adversely affect our profit margin, cash flow     and operating results or restrict our ability to drill wells and conduct     ordinary operations | 
    
      | Our  business  could  be  adversely affected by competition with other     companies | 
    
      | The natural gas and oil industry is highly competitive, and our business     could be adversely affected by companies that are in a better competitive     position | 
    
      | As an independent natural gas and oil company, we frequently     compete for reserve acquisitions, exploration leases, licenses, concessions,     marketing agreements, equipment and labor against companies with financial     and other resources substantially larger than we possess | 
    
      | Many of our     competitors may be able to pay more for exploratory prospects and productive     natural gas and oil properties and may be able to define, evaluate, bid for     and purchase a greater number of properties and prospects than we can | 
    
      | Our     ability  to  explore  for natural gas and oil prospects and to acquire     additional properties in the future will depend on our ability to conduct     operations, to evaluate and select suitable properties and to consummate     transactions in this highly competitive envi ronment | 
    
      | In addition, many of     our competitors have been operating in some of our core areas for a much     longer time than we have or have established strategic long-term positions     in geographic regions in which we may seek new entry | 
    
      | We  have  recently  made  significant  investments in our drilling rig     operations;  however,  we  are still dependent on third party drilling     companies | 
    
      | We also lack experience in owning and operating drilling rigs | 
    
      | We have recently made significant investments in commencing our drilling rig     operations, including commitments to purchase ten drilling rigs and hiring,     as of December 31, 2005, 45 new employees for our drilling       29 SWN       _________________________________________________________________       [108]Table of Contents       subsidiary, DeSoto Drilling, Inc, or DDI  We expect DDI to have a total of     approximately 275 employees by year end 2006 | 
    
      | The ten drilling rigs will     not be sufficient to meet the needs of our drilling program and we will     still be dependent upon third party rig providers in order to execute our     drilling program in 2006 and beyond | 
    
      | There can be no assurance that the     commencement of our drilling rig operations will not have an adverse effect     on our relationships with our existing third party rig providers or our     ability  to secure third party rigs from other providers | 
    
      | We may also     compete with third party rig providers for qualified personnel, which could     adversely affect our relationships with rig providers | 
    
      | If our existing third     party rig providers discontinue their relationships with us, we may not be     able to secure alternative rigs on a timely basis, or at all | 
    
      | Even if we     are  able  to  secure alternative rigs, there can be no assurance that     replacement rigs will be of equivalent quality or that pricing and other     terms will be favorable to us | 
    
      | If we are unable to secure third party rigs     or if the terms are not favorable to us, our financial condition and results     of operations could be adversely affected | 
    
      | We cannot assure you that we will be able to attract and retain     qualified field personnel to operate our drilling rigs or to otherwise     effectively conduct our drilling operations | 
    
      | If we are unable to retain     qualified personnel or to effectively conduct our drilling operations, our     financial and operating results may be adversely affected | 
    
      | We depend upon our management team and our operations require us to attract     and retain experienced technical personnel | 
    
      | The successful implementation of our business strategy and handling of other     issues integral to the fulfillment of our business strategy depends, in     part,  on  our  experienced  management  team,  as well as certain key     geoscientists, geologists, engineers and other professionals employed by us | 
    
      | The loss of key members of our management team or other highly qualified     technical  professionals  could  have a material adverse effect on our     business, financial condition and operating results | 
    
      | Our hedging activities may prevent us from benefiting from price increases     and may expose us to other risks | 
    
      | To reduce our exposure to fluctuations in the prices of natural gas and oil,     we enter into hedging arrangements with respect to a portion of our expected     production | 
    
      | As of December 31, 2005, we had hedges on approximately 70prca to     75prca of our targeted 2006 natural gas production and approximately 15prca to 20prca     of our targeted 2006 oil production | 
    
      | Our price risk management activities     reduced revenues by dlra77dtta2 million in 2005, dlra35dtta6 million in 2004 and dlra37dtta4     million in 2003 | 
    
      | To the extent that we engage in hedging activities, we may     be prevented from realizing the benefits of price increases above the levels     of the hedges | 
    
      | In addition, such transactions may expose us to the risk of financial loss     in certain circumstances, including instances in which:       ·       our production is less than expected;       ·       there is a widening of price differentials between delivery points for our     production and the delivery point assumed in the hedge arrangement;       ·       the counterparties to our futures contracts fail to perform the contracts;     or       ·       a sudden, unexpected event materially impacts natural gas or oil prices | 
    
      | In addition, future market price volatility could create significant changes     to the hedge positions recorded on our financial statements | 
    
      | We refer you     to “Quantitative and Qualitative Disclosures about Market Risk” in Item 7A     of Part II of this Form 10-K |