LEASES · O-8-478 · OIL · DISTRICT 7B
Williams, R. D. "A"
No volume since Mar 2009Diamond S Masada LLC · Callahan County · Callahan County Regular field
Williams, R. D. "A" is an RRC oil lease (O-8-478) in Callahan County operated by Diamond S Masada LLC, with 7 wells completed on it.
It has reported 3.54K barrels of oil and 20 mcf of gas since January 1993, last reporting volume in March 2009 (statewide data runs through April 2026).
No volume was reported in the last 12 months; the last was in March 2009.
3 operators have filed production on it, most recently Diamond S Masada LLC since March 2006.
- 3.54K
- bbl oil, all reported
- 20
- mcf gas incl. casinghead
- 0
- bbl oil, last 12 reported
- —
- vs the 12 before
- 7
- wells completed on it
- 63
- peak month, bbl (Jul 1998)
PDQ LEASE REPORTS · FIRST JAN 1993 · LAST VOLUME MAR 2009 · 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 0
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
Who reported it
Each run of months one operator filed the production report, oldest first.
- Wylie Bros. Prod. & Drgl. Co,incJan 1993 → Oct 1997 · 58 mo
- Sojourner Drilling CorporationNov 1997 → Feb 2006 · 100 mo
- Diamond S Masada LLCMar 2006 → Jul 2026 · 245 mo
Wells on the lease
FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL
7
wells completed on the lease
- Plugged
- 7
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-8-478, documented in the API reference.