Petrora

LEASES · O-8-11591 · OIL · DISTRICT 7B

Shaffer, M. C. 155

Reporting

Bustamante Resources LLC · Taylor County Regular field

Shaffer, M. C. 155 is an RRC oil lease (O-8-11591) in the Taylor County Regular field operated by Bustamante Resources LLC, with 3 wells completed on it.

It has reported 101K barrels of oil and 46 mcf of gas since January 1993, last reporting volume in March 2026 (statewide data runs through April 2026).

The last 12 reported months total 898 barrels of oil, up 38% on the year before; the lease peaked at 1.11K barrels in May 1993.

3 operators have filed production on it, most recently Bustamante Resources LLC since July 2025.

101K
bbl oil, all reported
46
mcf gas incl. casinghead
898
bbl oil, last 12 reported
+38%
vs the 12 before
3
wells completed on it
1.11K
peak month, bbl (May 1993)

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 898 · prior 12 652(+38%)

01002002017201820192020202120222023202420252026

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. Burk Royalty CompanyJan 1993 → Apr 1993 · 4 mo
  2. Robertson Resources, Inc.May 1993 → Jun 2025 · 386 mo
  3. Bustamante Resources LLCJul 2025 → Jul 2026 · 13 mo

Wells on the lease

FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL

3

wells completed on the lease

Plugged
2
Producing
1

Operates them now

Bustamante Resources LLC
3

Newest permits

  • — #1—
  • — #2—
  • — #4—

All 3 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-8-11591, documented in the API reference.