As a member of the FHLB, the Bank can access a number of credit products which are utilized to provide liquidity. As of December 31, 2021, and 2020, the Bank had long-term debt outstanding in the amount of $81,270,000 and $75,115,000, respectively, consisting of FHLB fixed rate instruments, and a finance lease liability executed in 2019.

The FHLB fixed rate instruments are secured under the terms of a blanket collateral agreement with the FHLB consisting of FHLB stock and qualifying Mid Penn loan receivables, principally real estate secured loans. Mid Penn also obtains letters of credit from the FHLB to secure certain public fund deposits of municipality and school district customers who agree to use of the FHLB letters of credit. These FHLB letter of credit commitments totaled $450,850,000 as of December 31, 2021 and $288,950,000 as of December 31, 2020.

During the first quarter of 2019, Mid Penn entered into a lease agreement for one facility under a non-cancelable finance lease, which commenced March 1, 2019 and expires February 28, 2039 and is included in long-term debt on the Consolidated Balance Sheets. Please reference Note 8, Leases, for more information related to Mid Penn’s finance lease obligation.

The following table presents a summary of long-term debt as of December 31, 2021 and December 31, 2020.

(Dollars in thousands)	At December 31,
	2021		2020
FHLB fixed rate instruments:
Due April 2022, 0.86343%	$	70,000	$	70,000
Due March 2023, 0.7514%		6,500		—
Due August 2026, 4.80%		1,353		1,606
Due February 2027, 6.71%		37		42
Total FHLB fixed rate instruments		77,890		71,648
Lease obligations included in long-term debt		3,380		3,467
Total long-term debt	$	81,270	$	75,115

Mid Penn made no prepayments of FHLB fixed rate instruments during the year ended December 31, 2021. During 2020, Mid Penn prepaid $25,000,000 of FHLB fixed rate instruments and recognized prepayment penalties of $165,000 that is included in other expenses on the Consolidated Statement of Income for the year ended December 31, 2020.

The aggregate principal amounts due on FHLB fixed rate instruments subsequent to December 31, 2021 are $70,271,000 (2022), $6,784,000 (2023), $299,000 (2024), $313,000 (2025), $221,000 (2026) and $2,000 thereafter.