Subsequent Events	3 Months Ended
Jun. 30, 2016
Subsequent Events [Abstract]
Subsequent Events	10. Subsequent Events On July 15, 2016, Pioneer Natural Resources Company exercised its option to extend for an additional two years on Mexco leasehold interest in 60 net acres (200 gross acres) in Upton County, Texas. Pioneer paid Mexco $1,500 per acre for a total of $90,000. Mexco retained a 1% overriding royalty interest in this acreage. Pioneer has drilled 7 wells on other portions of acreage in which Mexco holds an interest.

The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

No definition available.

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