Petrora

LEASES · O-1-10606 · OIL · DISTRICT 01

Tumlinson-Coffield Unit #1

Reporting

McDay Energy Corp. · Dimmit County · Blakeway (Dixon Sand) field

Tumlinson-Coffield Unit #1 is an RRC oil lease (O-1-10606) in Dimmit County operated by Mcday Energy Corp., with one well completed on it.

It has reported 15.9K barrels of oil and 38.5K mcf of gas since January 1993, last reporting volume in April 2026 (statewide data runs through April 2026).

The last 12 reported months total 42 barrels of oil, down 77% on the year before; the lease peaked at 228 barrels in November 1993.

8 operators have filed production on it, most recently Mcday Energy Corp. since September 2021.

15.9K
bbl oil, all reported
38.5K
mcf gas incl. casinghead
42
bbl oil, last 12 reported
-77%
vs the 12 before
1
wells completed on it
228
peak month, bbl (Nov 1993)

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 42 · prior 12 186(-77%)

0501002017201820192020202120222023202420252026

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 138 · prior 12 0

0510152017201820192020202120222023202420252026

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. Energy Development Corp.Jan 1993 → Jan 1993 · 1 mo
  2. Catarina Petroleum L. C.Feb 1993 → Jul 1998 · 66 mo
  3. Heartland Resources, Inc.Aug 1998 → Feb 1999 · 7 mo
  4. Carrizo Exploration, Inc.Mar 1999 → May 2006 · 87 mo
  5. TDW Exploration, LLCJun 2006 → Jan 2009 · 32 mo
  6. Anaconda Oil & GasFeb 2009 → Jul 2010 · 18 mo
  7. Texowa, LLCAug 2010 → Aug 2021 · 133 mo
  8. McDay Energy Corp.Sep 2021 → Jul 2026 · 59 mo

Wells on the lease

FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL

1

wells completed on the lease

Producing
1

Operates them now

McDay Energy Corp.
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-1-10606, documented in the API reference.