Petrora

LEASES · O-9-9991 · OIL · DISTRICT 7C

Williams, R. S. "B"

Reporting

Bustamante Oil Company · Schleicher County · Velrex (Cisco 6260) field

Williams, R. S. "B" is an RRC oil lease (O-9-9991) in Schleicher County operated by Bustamante Oil Company, with one well completed on it.

It has reported 12K barrels of oil and 218K mcf of gas since January 1993, last reporting volume in March 2026 (statewide data runs through April 2026).

The last 12 reported months total 72 barrels of oil; the lease peaked at 278 barrels in June 1995.

11 operators have filed production on it, most recently Bustamante Oil Company since November 2022.

12K
bbl oil, all reported
218K
mcf gas incl. casinghead
72
bbl oil, last 12 reported
—
vs the 12 before
1
wells completed on it
278
peak month, bbl (Jun 1995)

PDQ LEASE REPORTS · FIRST JAN 1993 · LAST VOLUME MAR 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 72 · prior 12 76(-5%)

0510152017201820192020202120222023202420252026

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

012017201820192020202120222023202420252026

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.

  1. Graham Royalty, Ltd.Jan 1993 → Nov 1993 · 11 mo
  2. Midpar L.P.Dec 1993 → Feb 1995 · 15 mo
  3. Parker & Parsley Development L.PMar 1995 → Aug 1997 · 30 mo
  4. Pioneer Natural Res. USA, Inc.Sep 1997 → Jun 1999 · 22 mo
  5. Prize Operating CompanyJul 1999 → Mar 2002 · 33 mo
  6. Gruy Petroleum Management Co.Apr 2002 → Apr 2006 · 49 mo
  7. Cimarex Energy Co. of ColoradoMay 2006 → Nov 2006 · 7 mo
  8. Quantum Resources Management,llcDec 2006 → Dec 2014 · 97 mo
  9. Breitburn Operating L.P.Jan 2015 → Jan 2021 · 73 mo
  10. West Inland Energy, Inc.Feb 2021 → Oct 2022 · 21 mo
  11. Bustamante Oil CompanyNov 2022 → Jul 2026 · 45 mo

Wells on the lease

FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL

1

wells completed on the lease

NO Type on File
1

Operates them now

Energy Reserves Group Inc.
1

Newest permits

All 1 wells, searchable →

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-9-9991, documented in the API reference.