Petrora

LEASES · O-1-12693 · OIL · DISTRICT 01

Shiner Ranch

No volume since Jul 2024

Blackbrush O & G, LLC · Frio County · Pearsall (Austin Chalk) field

Shiner Ranch is an RRC oil lease (O-1-12693) in Frio County operated by Blackbrush O & G, LLC, with 8 wells completed on it.

It has reported 871K barrels of oil and 387K mcf of gas since January 1993, last reporting volume in July 2024 (statewide data runs through April 2026).

No volume was reported in the last 12 months; the last was in July 2024.

9 operators have filed production on it, most recently Blackbrush O & G, LLC since May 2012.

871K
bbl oil, all reported
387K
mcf gas incl. casinghead
0
bbl oil, last 12 reported
—
vs the 12 before
8
wells completed on it
49K
peak month, bbl (Feb 1993)

PDQ LEASE REPORTS · FIRST JAN 1993 · LAST VOLUME JUL 2024 · 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 7(-100%)

05102017201820192020202120222023202420252026

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

Who reported it

Each run of months one operator filed the production report, oldest first.

  1. Gemini Exploration CompanyJan 1993 → Apr 1995 · 28 mo
  2. Union Pacific Austin Chalk Co.May 1995 → Dec 1996 · 20 mo
  3. Costilla Petroleum CorporationJan 1997 → Jan 1997 · 1 mo
  4. Costilla Energy, Inc.Feb 1997 → Mar 1999 · 26 mo
  5. Petra Oleum Corp.Apr 1999 → May 2001 · 26 mo
  6. Arcadia Expl. & Prod. CompanyJun 2001 → Jul 2001 · 2 mo
  7. Triumph Petroleum Company,l.l.c.Aug 2001 → Jan 2005 · 42 mo
  8. Blackbrush O & G, Inc.Feb 2005 → Apr 2012 · 87 mo
  9. Blackbrush O & G, LLCMay 2012 → Jul 2026 · 171 mo

Wells on the lease

FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL

8

wells completed on the lease

Plugged
6
NO Type on File
2

Operates them now

Blackbrush O & G LLC
6
Blackbrush O & G, LLC
2

Newest permits

All 8 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-1-12693, documented in the API reference.