(State or other jurisdiction

of incorporation)

(Commission

File Number)

(IRS Employer

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deterioration in economic conditions in any of the industries in which our customers operate, or sustained uncertainty in financial markets cause conditions we cannot predict;

an extended decline in prices we receive for our coal and gas affecting our operating results and cash flows;

our customers extending existing contracts or entering into new long-term contracts for coal;

our reliance on major customers;

our inability to collect payments from customers if their creditworthiness declines;

the disruption of rail, barge, gathering, processing and transportation facilities and other systems that deliver our coal and gas to market;

a loss of our competitive position because of the competitive nature of the coal and gas industries, or a loss of our competitive position because of overcapacity in these industries impairing our profitability;

our ability to negotiate a new agreement with the United Mine Workers’ of America and our inability to maintain satisfactory labor relations;

coal users switching to other fuels in order to comply with various environmental standards related to coal combustion emissions;

the impact of potential, as well as any adopted regulations relating to greenhouse gas emissions on the demand for coal and natural gas, as well as the impact of any adopted regulations on our coal mining operations due to the venting of coalbed methane which occurs during mining;

foreign currency fluctuations could adversely affect the competitiveness of our coal abroad;

the risks inherent in coal and gas operations being subject to unexpected disruptions, including geological conditions, equipment failure, timing of completion of significant construction or repair of equipment, fires, explosions, accidents and weather conditions which could impact financial results;

our focus on new gas development projects and exploration for gas in areas where we have little or no proven gas reserves;

decreases in the availability of, or increases in, the price of commodities and services used in our mining and gas operations, as well as our exposure under “take or pay” contracts we entered into with well service providers to obtain services of which if not used could impact our cost of production;

obtaining and renewing governmental permits and approvals for our coal and gas operations;

the effects of government regulation on the discharge into the water or air, and the disposal and clean-up of, hazardous substances and wastes generated during our coal and gas operations;

the effects of stringent federal and state employee health and safety regulations, including the ability of regulators to shut down a mine or well;

the potential for liabilities arising from environmental contamination or alleged environmental contamination in connection with our past or current coal and gas operations;

the effects of mine closing, reclamation, gas well closing and certain other liabilities;

uncertainties in estimating our economically recoverable coal and gas reserves;

costs associated with perfecting title for coal or gas rights on some of our properties;

the outcomes of various legal proceedings, which are more fully described in our reports filed under the Securities Exchange Act of 1934;

the impacts of various asbestos litigation claims;

increased exposure to employee related long-term liabilities;

increased exposure to multi-employer pension plan liabilities;

minimum funding requirements by the Pension Protection Act of 2006 (the Pension Act) coupled with the significant investment and plan asset losses suffered during the recent economic decline has exposed us to making additional required cash contributions to fund the pension benefit plans which we sponsor and the multi-employer pension benefit plans in which we participate;

lump sum payments made to retiring salaried employees pursuant to our defined benefit pension plan exceeding total service and interest cost in a plan year;

acquisitions that we recently have completed or may make in the future including the accuracy of our assessment of the acquired businesses and their risks, achieving any anticipated synergies, integrating the acquisitions and unanticipated changes that could affect assumptions we may have made and divestitures we anticipate may not occur or produce anticipated proceeds;

the anti-takeover effects of our rights plan could prevent a change of control;

increased exposure on our financial performance due to the degree we are leveraged;

replacing our natural gas reserves, which if not replaced, will cause our gas reserves and gas production to decline;

our ability to acquire water supplies needed for gas drilling, or our ability to dispose of water used or removed from strata in connection with our gas operations at a reasonable cost and within applicable environmental rules;

our hedging activities may prevent us from benefiting from price increases and may expose us to other risks;

other factors discussed in our 2010 Form 10-K under “Risk Factors,” as updated by any subsequent Form 10-Qs, which are on file at the Securities and Exchange Commission.