Petrora

LEASES · O-1-9282 · OIL · DISTRICT 01

Sawyer, N.C.

Reporting

JM Calk Operating, LLC · Bexar County · Fairfield field

Sawyer, N.C. is an RRC oil lease (O-1-9282) in Bexar County operated by JM Calk Operating, LLC, with one well completed on it.

It has reported 1.47K barrels of oil and 5 mcf of gas since January 1993, last reporting volume in August 2025 (statewide data runs through April 2026).

The last 12 reported months total 9 barrels of oil; the lease peaked at 164 barrels in September 2014.

6 operators have filed production on it, most recently JM Calk Operating, LLC since May 2022.

1.47K
bbl oil, all reported
5
mcf gas incl. casinghead
9
bbl oil, last 12 reported
—
vs the 12 before
1
wells completed on it
164
peak month, bbl (Sep 2014)

PDQ LEASE REPORTS · FIRST JAN 1993 · LAST VOLUME AUG 2025 · 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 9 · prior 12 31(-71%)

020402017201820192020202120222023202420252026

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. Caspen Operating CompanyJan 1993 → Sep 1993 · 9 mo
  2. Aminex USA, Inc.Oct 1993 → Dec 1994 · 15 mo
  3. Ginco Operating Co.Jan 1995 → May 1996 · 17 mo
  4. Great Plains Resources, Inc.Jun 1996 → Sep 2013 · 208 mo
  5. Premier Minerals, Inc.Oct 2013 → Apr 2022 · 103 mo
  6. JM Calk Operating, LLCMay 2022 → Jul 2026 · 51 mo

Wells on the lease

FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL

1

wells completed on the lease

Producing
1

Operates them now

JM Calk Operating LLC
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-1-9282, documented in the API reference.