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Consolidated Income Statements - USD ($)
shares in Thousands, $ in Thousands
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Operating revenues:      
Operating revenues $ 161,523 $ 163,799 $ 170,800
Costs and expenses:      
Production taxes 6,884 5,776 6,582
Operating expenses 7,671 6,435 6,307
Depreciation, depletion and amortization 42,588 26,307 19,083
General and administrative expenses 11,931 11,164 8,221
Total costs and expenses 69,074 49,682 40,193
Net income 92,449 114,117 130,607
Allocation of net income:      
General Partner 3,249 3,728 4,486
Unitholders $ 89,200 $ 110,389 $ 126,121
Net income per common unit (basic and diluted) (in dollars per share) $ 2.13 $ 2.85 $ 3.35
Weighted average basic and diluted common units outstanding (in shares) 41,811 38,783 37,624
Royalties [Member]      
Operating revenues:      
Operating revenues $ 137,465 $ 114,531 $ 133,262
Net Profit Interests [Member]      
Operating revenues:      
Operating revenues 21,856 34,338 28,207
Lease Bonus and Other [Member]      
Operating revenues:      
Operating revenues 314 12,668 8,661
Product and Service, Other [Member]      
Operating revenues:      
Operating revenues $ 1,888 $ 2,262 $ 670