Petrora

LEASES · O-11-8935 · OIL · DISTRICT 8A

Jines, Sibley

Reporting

Blackrock Operating, LLC · Seagraves, S. (Siluro-Devonian) field

Jines, Sibley is an RRC oil lease (O-11-8935) in the Seagraves, S. (Siluro-Devonian) field operated by Blackrock Operating, LLC, with one well completed on it.

It has reported 173K barrels of oil and 19 mcf of gas since January 1993, last reporting volume in March 2026 (statewide data runs through April 2026).

The last 12 reported months total 38 barrels of oil; the lease peaked at 1.86K barrels in February 1993.

6 operators have filed production on it, most recently Blackrock Operating, LLC since March 2025.

173K
bbl oil, all reported
19
mcf gas incl. casinghead
38
bbl oil, last 12 reported
—
vs the 12 before
1
wells completed on it
1.86K
peak month, bbl (Feb 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 38 · prior 12 77(-51%)

02004002017201820192020202120222023202420252026

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. S & J Operating Co.Jan 1993 → Aug 1993 · 8 mo
  2. Stephens & Johnson Operating Co.Sep 1993 → Nov 1999 · 75 mo
  3. Arrington,david H. Oil & Gas,incDec 1999 → Jun 2002 · 31 mo
  4. Aspen Operating Company, L.L.C.Jul 2002 → Apr 2022 · 238 mo
  5. Bustamante Oil CompanyMay 2022 → Feb 2025 · 34 mo
  6. Blackrock Operating, LLCMar 2025 → Jul 2026 · 17 mo

Wells on the lease

FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL

1

wells completed on the lease

Producing
1

Operates them now

Blackrock Operating LLC
1

Newest permits

  • — #1—

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-11-8935, documented in the API reference.