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Equity Method Investment (Tables)

6 Months Ended

Jun. 30, 2021

Equity Method Investments and Joint Ventures [Abstract]

Marketable Securities

Summarized financial information for NMRD is as follows:


			Results of Operations
			Three Months Ended June 30,												Six Months Ended June 30,
			2021						2020						2021						2020
			(In thousands)
Operating revenues			$	3,885					$	2,641					$	6,635					$	4,308
Operating expenses			2,416						1,472						4,938						3,052
Net earnings			$	1,469					$	1,169					$	1,697					$	1,256


			Financial Position
			June 30,						December 31,
			2021						2020
			(In thousands)
Current assets			$	7,781					$	8,046
Net property, plant, and equipment			169,132						172,585
Non-current assets			1,503						1,900
Total assets			178,416						182,531
Current liabilities			1,022						841
Non-current liabilities			387						380
Owners’ equity			$	177,007					$	181,310