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Derivatives (Tables)
3 Months Ended
Mar. 31, 2021
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Derivative Instruments, Gain (Loss)
The following table summarizes derivative activity for the three-month periods ended March 31, 2021, and 2020 (in thousands):

Three Months Ended March 31,
20212020
(Gain) loss on commodity derivative contracts$— $(10,226)
Cash received on settlements$— $(4,087)