Quarterly report pursuant to Section 13 or 15(d)

OTHER NON-CURRENT ASSETS

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OTHER NON-CURRENT ASSETS
9 Months Ended
Sep. 30, 2022
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]  
OTHER NON-CURRENT ASSETS
NOTE 5 — OTHER NON-CURRENT ASSETS
Other non-current assets consist of the following (in thousands):
September 30, 2022 December 31, 2021
Land lease and purchase options $ 795  $ 6,368 
Permitting costs —  13,408 
Right of use asset — operating leases 13,932  10,166 
Restricted cash 24,885  1,778 
Investments in unconsolidated entities 11,089  — 
Driftwood pipeline materials 5,229  — 
Other 1,875  1,798 
Total other non-current assets $ 57,805  $ 33,518 
Land Lease and Purchase Options
During the first quarter of 2022, we exercised the final land purchase options related to the Driftwood terminal. Land purchase options held by the Company as of September 30, 2022 are related to the Driftwood pipeline and other related pipelines.
Permitting Costs
Permitting costs primarily represented the purchase of wetland credits in connection with our permit application to the USACE in 2017 and 2018. These wetland credits were transferred to construction in progress upon issuing the limited notice to proceed to Bechtel in March 2022. See Note 3, Property, Plant and Equipment, for further information. These wetland credits will be applied to our permit in accordance with the Clean Water Act and the Rivers and Harbors Act, which require us to mitigate the potential impact to Louisiana wetlands that might be caused by the construction of the Driftwood Project.
Restricted Cash
Restricted cash as of September 30, 2022 and December 31, 2021, represents the cash collateralization of letters of credit associated with finance leases.

Investments in unconsolidated entities
On February 24, 2022, the Company purchased 1.5 million ordinary shares of an unaffiliated entity that provides renewable energy services for a total cost of approximately $6.1 million. This investment does not provide the Company with a controlling financial interest in or significant influence over the operating or financial decisions of the unaffiliated entity. The Company’s investment was recorded at cost.
The Company issued a $5.0 million promissory note due June 14, 2024 (the “Promissory Note”) to an unaffiliated entity (“Borrower”) engaged in the development of infrastructure projects in the energy industry. The Promissory Note bears interest at a rate of 6.00%, which will be capitalized into the outstanding principal balance annually.