Petrora

LEASES · O-13-29599 · OIL · DISTRICT 09

Ferrill

Reporting

Flintlock Exploration, LLC · Grayson County · Big Mineral Creek (Consolidated) field

Ferrill is an RRC oil lease (O-13-29599) in Grayson County operated by Flintlock Exploration, LLC, with one well completed on it.

It has reported 89K barrels of oil and 229K mcf of gas since December 1998, last reporting volume in April 2026 (statewide data runs through April 2026).

The last 12 reported months total 1.59K barrels of oil, down 7% on the year before; the lease peaked at 1.6K barrels in October 1999.

5 operators have filed production on it, most recently Flintlock Exploration, LLC since September 2025.

89K
bbl oil, all reported
229K
mcf gas incl. casinghead
1.59K
bbl oil, last 12 reported
-7%
vs the 12 before
1
wells completed on it
1.6K
peak month, bbl (Oct 1999)

PDQ LEASE REPORTS · FIRST DEC 1998 · LAST VOLUME APR 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 1,593 · prior 12 1,708(-7%)

01002003002017201820192020202120222023202420252026

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 2,462 · prior 12 2,636(-7%)

02004002017201820192020202120222023202420252026

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. Venoco, Inc.Dec 1998 → Mar 2005 · 76 mo
  2. Blackwell BMC, LPApr 2005 → Mar 2007 · 24 mo
  3. Blackwell BMC, LLCApr 2007 → May 2011 · 50 mo
  4. Jetta Operating Company, Inc.Jun 2011 → Aug 2025 · 171 mo
  5. Flintlock Exploration, LLCSep 2025 → Jul 2026 · 11 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

Venoco 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-13-29599, documented in the API reference.