Long-Term Debt

3 Months Ended

Mar. 31, 2022

Our outstanding long-term debt is shown below:


	March 31,		December 31,
(in thousands)	2022		2021
Uncollateralized senior notes:
5.93% note, due October 31, 2023	$	6,000	$	6,000
5.68% note, due June 30, 2026	14,500		14,500
6.43% note, due May 2, 2028	4,900		4,900
3.73% note, due December 16, 2028	14,000		14,000
3.88% note, due May 15, 2029	40,000		40,000
3.25% note, due April 30, 2032	70,000		70,000
3.48% note, due May 31, 2038	50,000		50,000
3.58% note, due November 30, 2038	50,000		50,000
3.98% note, due August 20, 2039	100,000		100,000
2.98% note, due December 20, 2034	70,000		70,000
3.00% note, due July 15, 2035	50,000		50,000
2.96% note, due August 15, 2035	40,000		40,000
2.49% notes Due January 25, 2037	50,000		50,000
2.95% notes Due March 15, 2042	50,000		—
Equipment security note
2.46% note, due September 24, 2031	9,165		9,378
Less: debt issuance costs	(970)		(913)
Total long-term debt	617,595		567,865
Less: current maturities	(19,717)		(17,962)
Total long-term debt, net of current maturities	$	597,878	$	549,903

Notes Purchase Agreement

On March 15, 2022 we issued 2.95 percent Senior Notes due March 15, 2042 to MetLife in the aggregate principal amount of $50 million. We used the proceeds received from the issuances of the Senior Notes to reduce short-term borrowings under the revolving credit facility and to fund capital expenditures. These Senior Notes have similar covenants and default provisions as the existing senior notes, and have an annual principal payment beginning in the eleventh year after the issuance.

Equipment Security Note

On September 24, 2021, we entered into an Equipment Financing Agreement with Banc of America Leasing & Capital, LLC to issue $9.6 million in sustainable financing to finance the purchase of equipment by our subsidiary, Marlin Gas Services. The equipment security note bears a 2.46 percent interest rate and has a term of ten years. Under the terms of the agreement, we granted a security interest in the equipment to the lender, to serve as collateral.

Shelf Agreements

We have entered into Shelf Agreements with Prudential and MetLife, whom are under no obligation to purchase any unsecured debt. The following table summarizes our Shelf Agreements at March 31, 2022:


(in thousands)	Total Borrowing Capacity		Less: Amount of Debt Issued		Less: Unfunded Commitments		Remaining Borrowing Capacity
Shelf Agreement
Prudential Shelf Agreement (1)	$	370,000	$	(220,000)	$	—	$	150,000
MetLife Shelf Agreement (1)	150,000		(50,000)		—		100,000

Total Shelf Agreements as of March 31, 2022	$	520,000	$	(270,000)	$	—	$	250,000

(1) The Prudential and MetLife Shelf Agreements expire in April 2023 and May 2023, respectively.

The Uncollateralized Senior Notes, Shelf Agreements or Shelf Notes set forth certain business covenants to which we are subject when any note is outstanding, including covenants that limit or restrict our ability, and the ability of our subsidiaries, to incur indebtedness, or place or permit liens and encumbrances on any of our property or the property of our subsidiaries.