4. Long-Term Debt

Long-term debt consisted of the following (in thousands):

	June 30, 2015		December 31, 2014
Revolving credit facility due May 2018	$	541,500	$	460,000
Term loan facility due May 2018	150,000		150,000
6% senior notes due April 2021 (presented net of the unamortized discount of $4.2 million and $4.5 million, respectively)	345,828		345,528
6% senior notes due October 2022 (presented net of the unamortized discount of $5.0 million and $5.2 million, respectively)	345,043		344,767

Long-term debt	$	1,382,371	$	1,300,295

Revolving Credit Facility and Term Loan

In February 2015, we amended our senior secured credit agreement (the “Credit Agreement”), which among other things, increased the borrowing capacity under the revolving credit facility by $250.0 million to $900.0 million. The Credit Agreement, which matures in May 2018, also includes a $150.0 million term loan facility. During the six months ended June 30, 2015, we incurred transaction costs of $1.3 million related to the amendment of our Credit Agreement. These costs were included in intangible and other assets, net, and are being amortized over the term of the facility. As of June 30, 2015, we had undrawn and available capacity of $358.5 million under our revolving credit facility.

6% Senior Notes Due April 2021 and 6% Senior Notes Due October 2022

In March 2013, we issued $350.0 million aggregate principal amount of 6% senior notes due April 2021 (the “2013 Notes”).

In April 2014, we issued $350.0 million aggregate principal amount of the 2014 Notes. We received net proceeds of $337.4 million, after original issuance discount and issuance costs, from this offering, which we used to fund a portion of the April 2014 MidCon Acquisition and repay borrowings under our revolving credit facility. We incurred $6.9 million in transaction costs related to this issuance. These costs were included in intangible and other assets, net, and are being amortized to interest expense over the term of the 2014 Notes. The 2014 Notes were issued at an original issuance discount of $5.7 million, which is being amortized using the effective interest method at an interest rate of 6.25% over their term. In February 2015, holders of the 2014 Notes exchanged their 2014 Notes for registered notes with the same terms.

The 2013 Notes and the 2014 Notes are guaranteed on a senior unsecured basis by all of our existing subsidiaries (other than EXLP Finance Corp., which is a co-issuer of the 2013 Notes and the 2014 Notes) and certain of our future subsidiaries. The 2013 Notes and the 2014 Notes and the guarantees, respectively, are our and the guarantors’ general unsecured senior obligations, rank equally in right of payment with all of our and the guarantors’ other senior obligations, and are effectively subordinated to all of our and the guarantors’ existing and future secured debt to the extent of the value of the collateral securing such indebtedness. In addition, the 2013 Notes and the 2014 Notes and guarantees are effectively subordinated to all existing and future indebtedness and other liabilities of any future non-guarantor subsidiaries. All of our subsidiaries are 100% owned, directly or indirectly, by us and guarantees by our subsidiaries are full and unconditional (subject to customary release provisions) and constitute joint and several obligations. We have no assets or operations independent of our subsidiaries, and there are no significant restrictions upon our subsidiaries’ ability to distribute funds to us. EXLP Finance Corp. has no operations and does not have revenue other than as may be incidental as co-issuer of the 2013 Notes and the 2014 Notes. Because we have no independent operations, the guarantees are full and unconditional (subject to customary release provisions) and constitute joint and several obligations of our subsidiaries other than EXLP Finance Corp., and as a result we have not included consolidated financial information of our subsidiaries.