LEASES · O-9-10229 · OIL · DISTRICT 7C
McMaster "B"
No volume since May 2013JM Cox Resources, L.P. · Reagan County · Spraberry (Trend Area) field
Mcmaster "B" is an RRC oil lease (O-9-10229) in Reagan County operated by JM Cox Resources, L.P., with one well completed on it.
It has reported 10.1K barrels of oil and 167K mcf of gas since January 1993, last reporting volume in May 2013 (statewide data runs through April 2026).
No volume was reported in the last 12 months; the last was in May 2013.
2 operators have filed production on it, most recently JM Cox Resources, L.P. since October 2003.
- 10.1K
- bbl oil, all reported
- 167K
- mcf gas incl. casinghead
- 0
- bbl oil, last 12 reported
- -100%
- vs the 12 before
- 1
- wells completed on it
- 179
- peak month, bbl (Feb 1999)
PDQ LEASE REPORTS · FIRST JAN 1993 · LAST VOLUME MAY 2013 · 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 0 · prior 12 311(-100%)
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 343 · prior 12 605(-43%)
Who reported it
Each run of months one operator filed the production report, oldest first.
- Cox, John L.Jan 1993 → Sep 2003 · 129 mo
- JM Cox Resources, L.P.Oct 2003 → Oct 2013 · 121 mo
Wells on the lease
FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL
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-9-10229, documented in the API reference.