LEASES · O-10-18649 · OIL · DISTRICT 08
North Mason /Delaware Sand/ Unit
ReportingExtex Operating Company · Loving County · Mason, N. (Delaware Sand) field
North Mason /Delaware Sand/ Unit is an RRC oil lease (O-10-18649) in Loving County operated by Extex Operating Company, with 59 wells completed on it.
It has reported 561K barrels of oil and 704K mcf of gas since January 1993, last reporting volume in April 2026 (statewide data runs through April 2026).
The last 12 reported months total 58.8K barrels of oil, down 6% on the year before; the lease peaked at 6.34K barrels in January 2024.
4 operators have filed production on it, most recently Extex Operating Company since February 2021.
- 561K
- bbl oil, all reported
- 704K
- mcf gas incl. casinghead
- 58.8K
- bbl oil, last 12 reported
- -6%
- vs the 12 before
- 59
- wells completed on it
- 6.34K
- peak month, bbl (Jan 2024)
PDQ LEASE REPORTS · FIRST JAN 1993 · LAST VOLUME APR 2026 · STATEWIDE DATA THROUGH APR 2026
Oil by month
Barrels reported on Form PR for the whole lease. The latest months are revised upward as late reports arrive.
Last 12 months 58,843 · prior 12 62,882(-6%)
Gas by month
Gas-well gas plus casinghead gas, mcf. On an oil lease all gas is reported as casinghead. The latest months are revised upward as late reports arrive.
Last 12 months 0 · prior 12 0
Decline curve
None shown. Petrora fits an Arps curve only when the last ten years of oil reports follow one decline closely enough to project (R² of 0.7 or better over at least a year since the peak). This lease's recent history does not, so a projection would be a guess dressed as a number.
Who reported it
Each run of months one operator filed the production report, oldest first.
- Marathon Oil CompanyJan 1993 → Oct 1999 · 82 mo
- Brothers Production Company Inc.Nov 1999 → Mar 2006 · 77 mo
- Legacy Reserves Operating LPApr 2006 → Jan 2021 · 178 mo
- Extex Operating CompanyFeb 2021 → Jul 2026 · 66 mo
Wells on the lease
FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL
59
wells completed on the lease
- Plugged
- 25
- Shut IN
- 17
- Producing
- 15
- Injection
- 2
Operates them now
About this data
Monthly oil, gas, and casinghead from the RRC PDQ production dump, which lags the reporting month by two to three months; figures shown through Apr 2026. Wells from completion reports; operator runs from who filed each month's report.
Developers: this page as JSON is GET /v1/data/leases/tx/o-10-18649, documented in the API reference.