Petrora

LEASES · O-10-35079 · OIL · DISTRICT 08

Marathon University -4-

Reporting

Vin Fisher Operating, Inc. · Andrews County · Fullerton (San Andres) field

Marathon University -4- is an RRC oil lease (O-10-35079) in Andrews County operated by Vin Fisher Operating, Inc., with 2 wells completed on it.

It has reported 38.5K barrels of oil and 91.2K mcf of gas since September 1996, last reporting volume in April 2026 (statewide data runs through April 2026).

The last 12 reported months total 502 barrels of oil, down 25% on the year before; the lease peaked at 792 barrels in June 1997.

8 operators have filed production on it, most recently Vin Fisher Operating, Inc. since February 2024.

38.5K
bbl oil, all reported
91.2K
mcf gas incl. casinghead
502
bbl oil, last 12 reported
-25%
vs the 12 before
2
wells completed on it
792
peak month, bbl (Jun 1997)

PDQ LEASE REPORTS · FIRST SEP 1996 · 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 502 · prior 12 669(-25%)

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 0 · prior 12 0

01002003002017201820192020202120222023202420252026

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. Ausland Production CompanySep 1996 → Jan 1999 · 29 mo
  2. Parish, John R.Feb 1999 → May 2004 · 64 mo
  3. HCMJun 2004 → Apr 2008 · 47 mo
  4. Vin Fisher Oil CompanyMay 2008 → May 2008 · 1 mo
  5. Vin Fisher Operating, Inc.Jun 2008 → Nov 2017 · 114 mo
  6. Mercury Operating, LLCDec 2017 → Aug 2023 · 69 mo
  7. Harvest Petroleum Inc.Sep 2023 → Jan 2024 · 5 mo
  8. Vin Fisher Operating, Inc.Feb 2024 → Jul 2026 · 30 mo

Wells on the lease

FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL

2

wells completed on the lease

Producing
2

Operates them now

Vin Fisher Operating Inc.
2

Newest permits

All 2 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-10-35079, documented in the API reference.