Petrora

LEASES · O-7-6438 · OIL · DISTRICT 6E

Cox

Reporting

ZTH Operating, LLC · East Texas field

Cox is an RRC oil lease (O-7-6438) in the East Texas field operated by Zth Operating, LLC, with 8 wells completed on it.

It has reported 111K barrels of oil and 529 mcf of gas since January 1993, last reporting volume in April 2026 (statewide data runs through April 2026).

The last 12 reported months total 1.86K barrels of oil, up 7% on the year before; the lease peaked at 910 barrels in December 2002.

10 operators have filed production on it, most recently Zth Operating, LLC since May 2021.

111K
bbl oil, all reported
529
mcf gas incl. casinghead
1.86K
bbl oil, last 12 reported
+7%
vs the 12 before
8
wells completed on it
910
peak month, bbl (Dec 2002)

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 1,861 · prior 12 1,744(+7%)

02004006002017201820192020202120222023202420252026

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. Cook Drilling Co.Jan 1993 → Sep 1996 · 45 mo
  2. Glass Resources Co.Oct 1996 → Jun 2001 · 57 mo
  3. Tri-AM Operating CompanyJul 2001 → Oct 2002 · 16 mo
  4. Recon Oil Co.Nov 2002 → Feb 2003 · 4 mo
  5. Hard Head Oil & GasMar 2003 → May 2003 · 3 mo
  6. Asa Oil & Gas, Inc.Jun 2003 → Jul 2005 · 26 mo
  7. Martineau Petroleum, Inc.Aug 2005 → Aug 2007 · 25 mo
  8. Martineau Operating CompanySep 2007 → Aug 2019 · 144 mo
  9. Ableready, Inc.Sep 2019 → Apr 2021 · 20 mo
  10. ZTH Operating, LLCMay 2021 → Jul 2026 · 63 mo

Wells on the lease

FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL

8

wells completed on the lease

Shut IN
4
Producing
3
Plugged
1

Operates them now

ZTH Operating LLC
8

Newest permits

  • — #1—
  • — #2—
  • — #3—
  • — #4—
  • — #5—
  • — #6—

All 8 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-7-6438, documented in the API reference.