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Revenue Recognition (Tables)
9 Months Ended
Mar. 31, 2021
Revenue from Contract with Customer [Abstract]  
Disaggregation of Revenue
Our revenue is primarily generated from our interests in the Delhi field in Northeast Louisiana and our interests in the Hamilton Dome field in Wyoming. Additionally, an overriding royalty interest retained in a past divestiture of Texas properties provided de minimis revenue:
Three Months Ended
March 31,
Nine Months Ended
March 31,
 2021202020212020
Revenues  
Crude oil$7,076,965 $7,461,823 $17,918,909 $25,281,564 
Natural gas liquids558,642 250,476 1,079,868 963,054 
Natural gas141 320 499 1,831 
Total revenues$7,635,748 $7,712,619 $18,999,276 $26,246,449