Petrora

LEASES · O-4-13657 · OIL · DISTRICT 04

Cuellar, E.

Reporting

RMX Oil & Gas, LLC · Zapata County · Jennings, W. (3000 Sand) field

Cuellar, E. is an RRC oil lease (O-4-13657) in Zapata County operated by Rmx Oil & Gas, LLC, with 10 wells completed on it.

It has reported 20K barrels of oil since April 2011, last reporting volume in January 2026 (statewide data runs through April 2026).

The last 12 reported months total 1.19K barrels of oil, down 36% on the year before; the lease peaked at 350 barrels in October 2016.

3 operators have filed production on it, most recently Rmx Oil & Gas, LLC since April 2024.

20K
bbl oil, all reported
0
mcf gas incl. casinghead
1.19K
bbl oil, last 12 reported
-36%
vs the 12 before
10
wells completed on it
350
peak month, bbl (Oct 2016)

PDQ LEASE REPORTS · FIRST APR 2011 · LAST VOLUME JAN 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 1,194 · prior 12 1,852(-36%)

02004002017201820192020202120222023202420252026

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. Zapata Oil Partners, L.L.C.Apr 2011 → Jun 2014 · 39 mo
  2. Outline Oil Company LLCJul 2014 → Mar 2024 · 117 mo
  3. RMX Oil & Gas, LLCApr 2024 → Jul 2026 · 28 mo

Wells on the lease

FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL

10

wells completed on the lease

NO Type on File
10

Operates them now

Pierco Energy Corp.
9
RMX Oil & Gas, LLC
1

Newest permits

  • 50500693 #16Oct 18, 1979
  • — #13—
  • — #22—
  • — #24—
  • — #25—
  • — #27—

All 10 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-4-13657, documented in the API reference.