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Wiki Wiki Summary
Minsk agreements The Minsk agreements were a series of international agreements which sought to end the war in the Donbas region of Ukraine. The first, known as the Minsk Protocol, was drafted in 2014 by the Trilateral Contact Group on Ukraine, consisting of Ukraine, Russia, and the Organization for Security and Co-operation in Europe (OSCE), with mediation by the leaders of France and Germany in the so-called Normandy Format.
The Four Agreements The Four Agreements: A Practical Guide to Personal Freedom is a self-help book by bestselling author Don Miguel Ruiz with Janet Mills. The book offers a code of conduct claiming to be based on ancient Toltec wisdom that advocates freedom from self-limiting beliefs that may cause suffering and limitation in a person's life.
Non-disclosure agreement A non-disclosure agreement (NDA), also known as a confidentiality agreement (CA), confidential disclosure agreement (CDA), proprietary information agreement (PIA), secrecy agreement (SA), or non-disparagement agreement, is a legal contract or part of a contract between at least two parties that outlines confidential material, knowledge, or information that the parties wish to share with one another for certain purposes, but wish to restrict access to. Doctor–patient confidentiality (physician–patient privilege), attorney–client privilege, priest–penitent privilege and bank–client confidentiality agreements are examples of NDAs, which are often not enshrined in a written contract between the parties.
Good Friday Agreement The Good Friday Agreement (GFA), or Belfast Agreement (Irish: Comhaontú Aoine an Chéasta or Comhaontú Bhéal Feirste; Ulster-Scots: Guid Friday Greeance or Bilfawst Greeance), is a pair of agreements signed on 10 April 1998 that ended most of the violence of the Troubles, a political conflict in Northern Ireland that had ensued since the late 1960s. It was a major development in the Northern Ireland peace process of the 1990s.
Master service agreement A master service agreement, sometimes known as a framework agreement, is a contract reached between parties, in which the parties agree to most of the terms that will govern future transactions or future agreements.\nA master agreement delineates a schedule of lower-level service agreements, permitting the parties to quickly enact future transactions or agreements, negotiating only the points specific to the new transactions and relying on the provisions in the master agreement for common terms.
1991 Paris Peace Agreements The Paris Peace Agreements (Khmer: សន្ធិសញ្ញាសន្តិភាពទីក្រុងប៉ារីស ឆ្នាំ១៩៩១; French: Accords de paix de Paris), formally titled Comprehensive Cambodian Peace Agreements, were signed on October 23, 1991, and marked the official end of the Cambodian–Vietnamese War and the Third Indochina War. The agreement led to the deployment of the first post-Cold War peace keeping mission (UNTAC) and the first ever occasion in which the UN took over as the government of a state.
Repurchase agreement A repurchase agreement, also known as a repo, RP, or sale and repurchase agreement, is a form of short-term borrowing, mainly in government securities. The dealer sells the underlying security to investors and, by agreement between the two parties, buys them back shortly afterwards, usually the following day, at a slightly higher price.
TRIPS Agreement The Agreement on Trade-Related Aspects of Intellectual Property Rights (TRIPS) is an international legal agreement between all the member nations of the World Trade Organization (WTO). It establishes minimum standards for the regulation by national governments of different forms of intellectual property (IP) as applied to nationals of other WTO member nations.
Operation Mincemeat Operation Mincemeat was a successful British deception operation of the Second World War to disguise the 1943 Allied invasion of Sicily. Two members of British intelligence obtained the body of Glyndwr Michael, a tramp who died from eating rat poison, dressed him as an officer of the Royal Marines and placed personal items on him identifying him as the fictitious Captain (Acting Major) William Martin.
Arithmetic Arithmetic (from Ancient Greek ἀριθμός (arithmós) 'number', and τική [τέχνη] (tikḗ [tékhnē]) 'art, craft') is an elementary part of mathematics that consists of the study of the properties of the traditional operations on numbers—addition, subtraction, multiplication, division, exponentiation, and extraction of roots. In the 19th century, Italian mathematician Giuseppe Peano formalized arithmetic with his Peano axioms, which are highly important to the field of mathematical logic today.
Bitwise operation In computer programming, a bitwise operation operates on a bit string, a bit array or a binary numeral (considered as a bit string) at the level of its individual bits. It is a fast and simple action, basic to the higher-level arithmetic operations and directly supported by the processor.
Special Activities Center The Special Activities Center (SAC) is a division of the Central Intelligence Agency responsible for covert operations and paramilitary operations. The unit was named Special Activities Division (SAD) prior to 2015.
Operations management Operations management is an area of management concerned with designing and controlling the process of production and redesigning business operations in the production of goods or services. It involves the responsibility of ensuring that business operations are efficient in terms of using as few resources as needed and effective in meeting customer requirements.
Operations research Operations research (British English: operational research), often shortened to the initialism OR, is a discipline that deals with the development and application of advanced analytical methods to improve decision-making. It is sometimes considered to be a subfield of mathematical sciences.
Emergency operations center An emergency operations center (EOC) is a central command and control facility responsible for carrying out the principles of emergency preparedness and emergency management, or disaster management functions at a strategic level during an emergency, and ensuring the continuity of operation of a company, political subdivision or other organization.\nAn EOC is responsible for strategic direction and operational decisions and does not normally directly control field assets, instead leaving tactical decisions to lower commands.
Surgery Surgery is a medical or dental specialty that uses operative manual and instrumental techniques on a person to investigate or treat a pathological condition such as a disease or injury, to help improve bodily function, appearance, or to repair unwanted ruptured areas.\nThe act of performing surgery may be called a surgical procedure, operation, or simply "surgery".
Operation Condor Operation Condor (Spanish: Operación Cóndor, also known as Plan Cóndor; Portuguese: Operação Condor) was a United States-backed campaign of political repression and state terror involving intelligence operations and assassination of opponents. It was officially and formally implemented in November 1975 by the right-wing dictatorships of the Southern Cone of South America.Due to its clandestine nature, the precise number of deaths directly attributable to Operation Condor is highly disputed.
Coal An oil is any nonpolar chemical substance that is composed primarily of hydrocarbons and is both hydrophobic (does not mix with water, literally "water fearing") and lipophilic (mixes with other oils, literally "fat loving"). Oils are usually flammable and surface active.
Coal mining Coal mining is the process of extracting coal from the ground. Coal is valued for its energy content and since the 1880s has been widely used to generate electricity.
December December is the twelfth and the final month of the year in the Julian and Gregorian calendars. It is also the last of seven months to have a length of 31 days.
December 17 December 17 is the 351st day of the year (352nd in leap years) in the Gregorian calendar; 14 days remain until the end of the year.\n\n\n== Events ==\n\n\n=== Pre-1600 ===\n497 BC – The first Saturnalia festival was celebrated in ancient Rome.
December 1924 German federal election Federal elections were held in Germany on 7 December 1924, the second that year after the Reichstag had been dissolved on 20 October. The Social Democratic Party remained the largest party in the Reichstag, receiving an increased share of the vote and winning 131 of the 493 seats.
December 1 December is the twelfth and the final month of the year in the Julian and Gregorian calendars. It is also the last of seven months to have a length of 31 days.
2016 in aviation This is a list of aviation-related events from 2016.\n\n\n== Events ==\n\n\n=== January ===\nThe Government of Italy permitted United States unmanned aerial vehicles (UAVs or drones) to fly strike missions from Naval Air Station Sigonella in Sicily where the US has operated unarmed surveillance UAVs since 2001 against Islamic State targets in Libya, but only if they are "defensive," protecting U.S. forces or rescuers retrieving downed pilots.
December 31 December 3 is the 337th day of the year (338th in leap years) in the Gregorian calendar; 28 days remain until the end of the year.\n\n\n== Events ==\n\n\n=== Pre-1600 ===\n915 – Pope John X crowns Berengar I of Italy as Holy Roman Emperor (probable date).
December 8 December 3 is the 337th day of the year (338th in leap years) in the Gregorian calendar; 28 days remain until the end of the year.\n\n\n== Events ==\n\n\n=== Pre-1600 ===\n915 – Pope John X crowns Berengar I of Italy as Holy Roman Emperor (probable date).
Gold mining Gold mining is the extraction of gold resources by mining. Historically, mining gold from alluvial deposits used manual separation processes, such as gold panning.
Mining engineering Mining in the engineering discipline is the extraction of minerals from underneath, open pit, above or on the ground. Mining engineering is associated with many other disciplines, such as mineral processing, exploration, excavation, geology, and metallurgy, geotechnical engineering and surveying.
Surface mining Surface mining, including strip mining, open-pit mining and mountaintop removal mining, is a broad category of mining in which soil and rock overlying the mineral deposit (the overburden) are removed, in contrast to underground mining, in which the overlying rock is left in place, and the mineral is removed through shafts or tunnels.\nIn North America, where the majority of surface coal mining occurs, this method began to be used in the mid-16th century and is practiced throughout the world in the mining of many different minerals.
Illegal mining Illegal mining is mining activity that is undertaken without state permission, in particular in absence of land rights, mining licenses, and exploration or mineral transportation permits.Illegal mining can be a subsistence activity, as is the case with artisanal mining, or it can belong to large-scale organized crime, spearheaded by illegal mining syndicates. On an international level, approximately 80 percent of small-scale mining operations can be categorized as illegal.
Debt Death is the irreversible cessation of all biological functions that sustain an organism. Brain death is sometimes used as a legal definition of death.
Collateralized debt obligation A collateralized debt obligation (CDO) is a type of structured asset-backed security (ABS). Originally developed as instruments for the corporate debt markets, after 2002 CDOs became vehicles for refinancing mortgage-backed securities (MBS).
Joy Global Joy Global Inc. was a company that manufactured and serviced heavy equipment used in the extraction and haulage of coal and minerals in both underground and surface mining.
Uranium mining in the Bancroft area Uranium mining in Bancroft represents one of two major uranium-producing areas in Ontario, and one of seven in Canada, all located along the edge of the Canadian Shield. In the context of mining, the "Bancroft area" includes Haliburton, Hastings, and Renfrew counties, and all areas between Minden and Lake Clear.
Placer mining Placer mining is the mining of stream bed (alluvial) deposits for minerals. This may be done by open-pit (also called open-cast mining) or by various surface excavating equipment or tunneling equipment.
Sand mining Salt mining extracts natural salt deposits from underground. The mined salt is usually in the form of halite (commonly known as rock salt), and extracted from evaporite formations.
Risk Factors
PEABODY ENERGY CORP Item 1A Risk Factors
If a substantial portion of our long-term coal supply agreements terminate, our revenues and operating profits could suffer if we were unable to find alternate buyers willing to purchase our coal on comparable terms to those in our contracts
Most of our sales are made under coal supply agreements, which are important to the stability and profitability of our operations
The execution of a satisfactory coal supply agreement is frequently the basis on which we undertake the development of coal reserves required to be supplied under the contract
For the year ended December 31, 2005, 90prca of our sales volume was sold under long-term coal supply agreements
At December 31, 2005, our coal supply agreements had remaining terms ranging from one to 19 years and an average volume-weighted remaining term of approximately 3dtta2 years
Many of our coal supply agreements contain provisions that permit the parties to adjust the contract price upward or downward at specified times
We may adjust these contract prices based on inflation or deflation and/or changes in the factors affecting the cost of producing coal, such as taxes, fees, royalties and changes in the laws regulating the mining, production, sale or use of coal
In a limited number of contracts, failure of the parties to agree on a price under those provisions may allow either party to terminate the contract
We sometimes experience a reduction in coal prices in new long-term coal supply agreements replacing some of our expiring contracts
Coal supply agreements also typically contain force majeure provisions allowing temporary suspension of performance by us or the customer during the duration of specified events beyond the control of the affected party
Most coal supply agreements contain provisions requiring us to deliver coal meeting quality thresholds for certain characteristics such as Btu, sulfur content, ash content, grindability and ash fusion temperature
Failure to meet these specifications could result in economic penalties, including price adjustments, the rejection of deliveries or termination of the contracts
Moreover, some of these agreements permit the customer to terminate the contract if transportation costs, which our customers typically bear, increase substantially
In addition, some of these contracts allow our customers to terminate their contracts in the event of changes in regulations affecting our industry that increase the price of coal beyond specified limits
The operating profits we realize from coal sold under supply agreements depend on a variety of factors
In addition, price adjustment and other provisions may increase our exposure to short-term coal price volatility provided by those contracts
If a substantial portion of our coal supply agreements were modified or terminated, we could be materially adversely affected to the extent that we are unable to find 27 _________________________________________________________________ [83]Table of Contents alternate buyers for our coal at the same level of profitability
Market prices for coal vary by mining region and country
As a result, we cannot predict the future strength of the coal market overall or by mining region and cannot assure you that we will be able to replace existing long-term coal supply agreements at the same prices or with similar profit margins when they expire
In addition, one of our largest coal supply agreements is the subject of ongoing litigation and arbitration
The loss of, or significant reduction in, purchases by our largest customers could adversely affect our revenues
For the year ended December 31, 2005, we derived 21prca of our total coal revenues from sales to our five largest customers
At December 31, 2005, we had 79 coal supply agreements with these customers expiring at various times from 2006 to 2011
We are currently discussing the extension of existing agreements or entering into new long-term agreements with some of these customers, but these negotiations may not be successful and those customers may not continue to purchase coal from us under long-term coal supply agreements
If a number of these customers were to significantly reduce their purchases of coal from us, or if we were unable to sell coal to them on terms as favorable to us as the terms under our current agreements, our financial condition and results of operations could suffer materially
We had been supplying coal to the Mohave Generating Station pursuant to a long-term coal supply agreement through our Black Mesa Mine
The mine suspended its operations on December 31, 2005, and the coal supply agreement expired on that date
As a part of an alternate dispute resolution, Peabody Western has been participating in mediation with the owners of the Mohave Generating Station and the Navajo Generating Station, and the two tribes to resolve the complex issues surrounding groundwater and other disputes involving the two generating stations
Resolution of these issues is critical to the operation of the Mohave Generating Station after December 31, 2005
There is no assurance that these issues will be resolved
The Mohave plant was the sole customer of the Black Mesa Mine, which sold 4dtta6 million tons of coal in 2005
During 2005, the mine generated dlra29dtta8 million of Adjusted EBITDA (reconciled to its most comparable measure under generally accepted accounting principles in Note 27 of the consolidated financial statements), which represented 3dtta4prca of our total EBITDA of dlra870dtta4 million
Our financial performance could be adversely affected by our debt
Our financial performance could be affected by our indebtedness
As of December 31, 2005, our total indebtedness was approximately dlra1cmam405dtta5 million, and we had dlra493dtta3 million of available borrowing capacity under our revolving credit facility
We may also incur additional indebtedness in the future
The degree to which we are leveraged could have important consequences, including, but not limited to: • making it more difficult for us to pay interest and satisfy our debt obligations; • increasing our vulnerability to general adverse economic and industry conditions; • requiring the dedication of a substantial portion of our cash flow from operations to the payment of principal of, and interest on, our indebtedness, thereby reducing the availability of the cash flow to fund working capital, capital expenditures or other general corporate uses; • limiting our ability to obtain additional financing to fund future working capital, capital expenditures or other general corporate requirements; • limiting our flexibility in planning for, or reacting to, changes in our business and in the coal industry; and • placing us at a competitive disadvantage compared to less leveraged competitors
In addition, our indebtedness subjects us to financial and other restrictive covenants
Failure by us to comply with these covenants could result in an event of default which, if not cured or waived, could have 28 _________________________________________________________________ [84]Table of Contents a material adverse effect on us
Furthermore, substantially all of our assets secure our indebtedness under our credit facility
If our cash flows and capital resources are insufficient to fund our debt service obligations, we may be forced to sell assets, seek additional capital or seek to restructure or refinance our indebtedness, including the notes
These alternative measures may not be successful and may not permit us to meet our scheduled debt service obligations
In the absence of sufficient operating results and resources, we could face substantial liquidity problems and might be required to sell material assets or operations to attempt to meet our debt service and other obligations
The credit facility and indentures governing the notes restrict our ability to sell assets and use the proceeds from the sales
We may not be able to consummate those sales or to obtain the proceeds which we could realize from them and these proceeds may not be adequate to meet any debt service obligations then due
If transportation for our coal becomes unavailable or uneconomic for our customers, our ability to sell coal could suffer
Transportation costs represent a significant portion of the total cost of coal and, as a result, the cost of transportation is a critical factor in a customer’s purchasing decision
Increases in transportation costs could make coal a less competitive source of energy or could make some of our operations less competitive than other sources of coal
Certain coal supply agreements, which account for less than 5prca of our tons sold, permit the customer to terminate the contract if the cost of transportation increases by an amount ranging from 10prca to 20prca in any given 12-month period
Coal producers depend upon rail, barge, trucking, overland conveyor, pipeline and ocean-going vessels to deliver coal to markets
While our coal customers typically arrange and pay for transportation of coal from the mine or port to the point of use, disruption of these transportation services because of weather-related problems, infrastructure damage, strikes, lock-outs, lack of fuel or maintenance items, transportation delays or other events could temporarily impair our ability to supply coal to our customers and thus could adversely affect our results of operations
For example, two primary lines serve the Powder River Basin mines
Due to the high volume of coal shipped from all Powder River Basin mines, the loss of one, or both, of those lines due to damage or labor strike could create temporary congestion on the rail systems servicing that region
Continued increases in coal demand, combined with inventories at electricity generators that are lower than historical averages, created periodic regional rail and port congestion in 2005
To the extent rail or port congestion constrains our operations’ ability to successfully ship coal to our customers, our operating results will be reduced
Risks inherent to mining could increase the cost of operating our business
Our mining operations are subject to conditions that can impact the safety of our workforce, or delay coal deliveries or increase the cost of mining at particular mines for varying lengths of time
These conditions include fires and explosions from methane gas or coal dust; accidental minewater discharges; weather, flooding and natural disasters; unexpected maintenance problems; key equipment failures; variations in coal seam thickness; variations in the amount of rock and soil overlying the coal deposit; variations in rock and other natural materials and variations in geologic conditions
We maintain insurance policies that provide limited coverage for some of these risks, although there can be no assurance that these risks would be fully covered by our insurance policies
Despite our efforts, significant mine accidents could occur and have a substantial impact
Our mining operations are extensively regulated, which imposes significant costs on us, and future regulations could increase those costs or limit our ability to produce coal
Federal, state and local authorities regulate the coal mining industry with respect to matters such as employee health and safety, permitting and licensing requirements, air quality standards, water pollution, plant and wildlife protection, reclamation and restoration of mining properties after mining is completed, 29 _________________________________________________________________ [85]Table of Contents the discharge of materials into the environment, surface subsidence from underground mining and the effects that mining has on groundwater quality and availability
In addition, significant legislation mandating specified benefits for retired coal miners affects our industry
Numerous governmental permits and approvals are required for mining operations
We are required to prepare and present to federal, state or local authorities data pertaining to the effect or impact that any proposed exploration for or production of coal may have upon the environment
The costs, liabilities and requirements associated with these regulations may be costly and time-consuming and may delay commencement or continuation of exploration or production
The possibility exists that new legislation and/or regulations and orders related to the environment or employee health and safety may be adopted and may materially adversely affect our mining operations, our cost structure and/or our customers’ ability to use coal
New legislation or administrative regulations (or judicial interpretations of existing laws and regulations), including proposals related to the protection of the environment that would further regulate and tax the coal industry, may also require us or our customers to change operations significantly or incur increased costs
The majority of our coal supply agreements contain provisions that allow a purchaser to terminate its contract if legislation is passed that either restricts the use or type of coal permissible at the purchaser’s plant or results in specified increases in the cost of coal or its use
These factors and legislation, if enacted, could have a material adverse effect on our financial condition and results of operations
In addition, the United States, Australia and more than 160 other nations are signatories to the 1992 Framework Convention on Climate Change, which addresses emissions of greenhouse gases, such as carbon dioxide
In December 1997, in Kyoto, Japan, the signatories to the convention established a binding set of emission targets for developed nations
Although the specific emission targets vary from country to country, the United States would be required to reduce emissions to 93prca of 1990 levels over a five-year budget period from 2008 through 2012
Although the United States has not ratified the emission targets and no comprehensive regulations focusing on greenhouse gas emissions are in place in the US, these restrictions, whether through ratification of the emission targets or other efforts to stabilize or reduce greenhouse gas emissions, could adversely affect the price and demand for coal
According to the Department of Energy’s Energy Information Administration, “Emissions of Greenhouse Gases in the United States 2003,” coal accounts for 31prca of greenhouse gas emissions in the United States, and efforts to control greenhouse gas emissions could result in reduced use of coal if electricity generators switch to lower carbon sources of fuel
Further developments in connection with regulations or other limits on carbon dioxide emissions could have a material adverse effect on our financial condition or results of operations
Our expenditures for postretirement benefit and pension obligations could be materially higher than we have predicted if our underlying assumptions prove to be incorrect
We provide postretirement health and life insurance benefits to eligible union and non-union employees
We calculated the total accumulated postretirement benefit obligation under SFAS Nodtta 106, “Employers’ Accounting for Postretirement Benefits Other Than Pensions,” which we estimate had a present value of dlra1cmam034dtta3 million as of December 31, 2005, dlra75dtta0 million of which was a current liability
We have estimated these unfunded obligations based on assumptions described in the notes to our consolidated financial statements
If our assumptions do not materialize as expected, cash expenditures and costs that we incur could be materially higher
Moreover, regulatory changes could increase our obligations to provide these or additional benefits
We are party to an agreement with the Pension Benefit Guaranty Corporation (the “PBGC”) and TXU Europe Limited, an affiliate of our former parent corporation, under which we are required to make specified contributions to two of our defined benefit pension plans and to maintain a dlra37dtta0 million letter of credit in favor of the PBGC If we or the PBGC give notice of an intent to terminate one or more of the covered pension plans in which liabilities are not fully funded, or if we fail to maintain the letter of credit, the PBGC may draw down on the letter of credit and use the proceeds to satisfy liabilities under the Employee Retirement Income Security Act of 1974, as amended
The PBGC, however, is required to first apply amounts received from a dlra110dtta0 million guaranty in place from TXU Europe Limited in favor of the 30 _________________________________________________________________ [86]Table of Contents PBGC before it draws on our letter of credit
On November 19, 2002 TXU Europe Limited was placed under the administration process in the United Kingdom (a process similar to bankruptcy proceedings in the United States) and continues under this process as of December 31, 2005
In addition, certain of our subsidiaries participate in two defined benefit multi-employer pension funds that were established as a result of collective bargaining with the UMWA pursuant to the National Bituminous Coal Wage Agreement as periodically negotiated
The UMWA 1950 Pension Plan provides pension and disability pension benefits to qualifying represented employees retiring from a participating employer where the employee last worked prior to January 1, 1976
This is a closed group of beneficiaries with no new entrants
The UMWA 1974 Pension Plan provides pension and disability pension benefits to qualifying represented employees retiring from a participating employer where the employee last worked after December 31, 1975
Contributions to these funds could increase as a result of future collective bargaining with the UMWA, a shrinking contribution base as a result of the insolvency of other coal companies who currently contribute to these funds, lower than expected returns on pension fund assets, higher medical and drug costs or other funding deficiencies
The United Mine Workers of America Combined Fund was created by federal law in 1992
This multi-employer fund provides health care benefits to a closed group of our retired former employees who last worked prior to 1976, as well as orphaned beneficiaries of bankrupt companies who were receiving benefits as orphans prior to the 1992 law
No new retirees will be added to this group
The liability is subject to increases or decreases in per capita health care costs, offset by the mortality curve in this aging population of beneficiaries
Another fund, the 1992 Benefit Plan created by the same federal law in 1992, provides benefits to qualifying retired former employees of bankrupt companies who have defaulted in providing their former employees with retiree medical benefits
Beneficiaries continue to be added to this fund as employers default in providing their former employees with retiree medical benefits, but the overall exposure for new beneficiaries into this fund is limited to retirees covered under their employer’s plan who retired prior to October 1, 1994
A third fund, the 1993 Benefit Fund, was established through collective bargaining and provides benefits to qualifying retired former employees who retired after September 30, 1994 of certain signatory companies who have gone out of business and have defaulted in providing their former employees with retiree medical benefits
Beneficiaries continue to be added to this fund as employers go out of business
Based upon the enactment of the Medicare Prescription Drug, Improvement and Modernization Act of 2003, we assumed future cash savings which allowed us to reduce our projected postretirement benefit obligations and related expense
Failure to achieve these assumed future savings under all benefit plans could adversely affect our financial condition, results of operations and cash flows
A decrease in the availability or increase in costs of key supplies or commodities such as diesel fuel, steel, explosives and tires could decrease our anticipated profitability
Our mining operations require a reliable supply of replacement parts, explosives, fuel, tires, steel-related products (including roof control) and lubricants
If the cost of any of these inputs increased significantly, or if a source for these supplies or mining equipment were unavailable to meet our replacement demands, our profitability could be reduced from our current expectations
Recent consolidation of suppliers of explosives has limited the number of sources for these materials, and our current supply of explosives is concentrated with one supplier
Further, our purchases of some items of underground mining equipment are concentrated with one principal supplier
In the past year, industry-wide demand growth has exceeded supply growth for certain surface and underground mining equipment and off-the-road tires
As a result, lead times for some items has generally increased by up to several months
31 _________________________________________________________________ [87]Table of Contents Our future success depends upon our ability to continue acquiring and developing coal reserves that are economically recoverable
Our recoverable reserves decline as we produce coal
We have not yet applied for the permits required or developed the mines necessary to use all of our reserves
Furthermore, we may not be able to mine all of our reserves as profitably as we do at our current operations
Our future success depends upon our conducting successful exploration and development activities or acquiring properties containing economically recoverable reserves
Our current strategy includes increasing our reserves through acquisitions of government and other leases and producing properties and continuing to use our existing properties
The federal government also leases natural gas and coalbed methane reserves in the West, including in the Powder River Basin
Some of these natural gas and coalbed methane reserves are located on, or adjacent to, some of our Powder River Basin reserves, potentially creating conflicting interests between us and lessees of those interests
Other lessees’ rights relating to these mineral interests could prevent, delay or increase the cost of developing our coal reserves
These lessees may also seek damages from us based on claims that our coal mining operations impair their interests
Additionally, the federal government limits the amount of federal land that may be leased by any company to 150cmam000 acres nationwide
As of December 31, 2005, we leased a total of 62cmam330 acres from the federal government
The limit could restrict our ability to lease additional federal