proceeds of $33.5 million from the issuance of common stock, partially offset by $40.5 million of debt repayments. During 2005, net cash flow provided by financing activities was $95.6 million and was primarily comprised of $183.6 million of net proceeds from borrowings primarily from the Second Lien Credit Facility and also advances under the Senior Credit Facility and the net proceeds of $17.0 million from the 2005 private placement of common stock. The proceeds were partially offset by $101.0 million of debt repayments.

Liquidity/Cash Flow Outlook. In February 2008, we received approximately $135.4 million, before expenses, from an underwritten public offering of 2,587,500 shares of our common stock priced at $54.50 per share. With a portion of the proceeds we repaid the $85.0 million of borrowings outstanding under the Senior Credit Facility. We believe that the proceeds from this offering and cash generated from operations along with cash on hand and the cash available under the Senior Credit Facility is sufficient to fund our immediate needs but we may need to seek other financing alternatives, including additional debt or equity financings, to fully fund our 2008 capital expenditures program, especially if there are additional capital needsin connection with our Floyd Shale or U.K. North Sea operations or new opportunities in our Other Shale areas.

We may not be able to obtain financing needed in the future on terms that would be acceptable to us. If we cannot obtain adequate financing, we may be required to limit or defer our planned oil and natural gas exploration and development program, thereby adversely affecting the recoverability and ultimate value of our oil and natural gas properties.

Contractual Obligations

The following table sets forth estimates of our contractual obligations as of December 31, 2007:

 

Off Balance Sheet Arrangements

We currently do not have any off balance sheet arrangements.

Financing Arrangements

Second Lien Credit Facility

On July 21, 2005, we entered into a Second Lien Credit Agreement with Credit Suisse, as administrative agent and collateral agent and the lenders party thereto (the “Second Lien Credit Facility”) that matures on July 21, 2010. The Second Lien Credit Facility, as amended, provides for a term loan facility in an aggregate principal amount of $225.0 million. It is secured by substantially all of our assets and is guaranteed by our subsidiaries. The liens securing the Second Lien Credit Facility are second in priority to the liens securing the Senior Secured Revolving Credit Facility (discussed below).

The interest rate on each base rate loan will be the greater of the agent’s prime rate and the federal funds effective rate plus0.5%, plus a margin of 3.75%. The interest on each Eurodollar loan will be the adjusted LIBO rate plus a margin of 4.75%. Interest on Eurodollar loans is payable on either the last day of each period or every three months, whichever is earlier. Interest on our outstanding borrowings under the Second Lien Credit Facility is payable quarterly. On December 31, 2007, the interest rate was approximately 9.6%, excluding the impact of interest rate swaps.

We are subject to certain covenants under the Second Lien Credit Facility. These covenants include, but are not limited to, the maintenance of the following financial covenants: (1) a minimum current ratio of 1.0 to 1.0 including availability under the borrowing base under the Senior Credit Facility; (2) a minimum quarterly interest coverage ratio of 2.75 to 1.0 through December 31, 2007 and 3.0 to 1.0 thereafter; (3) a minimum quarterly proved reserve coverage ratio of 1.5 to 1.0 through

     
 
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