Petrora

LEASES · O-10-21563 · OIL · DISTRICT 08

Halley, S. M.

Reporting

Penwell South Operating LLC · Halley field

Halley, S. M. is an RRC oil lease (O-10-21563) in the Halley field operated by Penwell South Operating LLC, with 16 wells completed on it.

It has reported 147K barrels of oil and 49.7K mcf of gas since January 1993, last reporting volume in April 2026 (statewide data runs through April 2026).

The last 12 reported months total 5.19K barrels of oil, up 30% on the year before; the lease peaked at 2.37K barrels in September 2018.

12 operators have filed production on it, most recently Penwell South Operating LLC since May 2025.

147K
bbl oil, all reported
49.7K
mcf gas incl. casinghead
5.19K
bbl oil, last 12 reported
+30%
vs the 12 before
16
wells completed on it
2.37K
peak month, bbl (Sep 2018)

PDQ LEASE REPORTS · FIRST JAN 1993 · 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 5,192 · prior 12 3,985(+30%)

01K2K3K2017201820192020202120222023202420252026

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 342 · prior 12 1,130(-70%)

02K4K6K2017201820192020202120222023202420252026

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. Wortham, E. H.Jan 1993 → Nov 1997 · 59 mo
  2. Winkler Acquisition, LLCDec 1997 → Jan 1999 · 14 mo
  3. CW Crockett, Inc.Feb 1999 → Jun 2000 · 17 mo
  4. Three Span Oil & Gas, Inc.Jul 2000 → Jun 2001 · 12 mo
  5. SDG Resources L.P.Jul 2001 → May 2006 · 59 mo
  6. Torch Energy Services, Inc.Jun 2006 → Dec 2008 · 31 mo
  7. Resaca Operating CompanyJan 2009 → Jun 2013 · 54 mo
  8. Roswell Operating, LLCJul 2013 → Mar 2015 · 21 mo
  9. Cavalcade Operating Company LLCApr 2015 → Sep 2017 · 30 mo
  10. Stout Energy Inc.Oct 2017 → Oct 2019 · 25 mo
  11. Black Arrow Operating, LLCNov 2019 → Apr 2025 · 66 mo
  12. Penwell South Operating LLCMay 2025 → Jul 2026 · 15 mo

Wells on the lease

FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL

16

wells completed on the lease

Shut IN
7
Producing
6
Plugged
3

Operates them now

Penwell South Operating LLC
16

Newest permits

  • — #1—
  • — #10W—
  • — #11—
  • — #12—
  • — #13—
  • — #14W—

All 16 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-10-21563, documented in the API reference.