Petrora

LEASES · O-10-31218 · OIL · DISTRICT 08

Cole, Doris Chalk

Reporting

Extex Operating Company · Howard County · Howard-Glasscock (Wolfcamp 7400) field

Cole, Doris Chalk is an RRC oil lease (O-10-31218) in Howard County operated by Extex Operating Company, with 2 wells completed on it.

It has reported 70.6K barrels of oil and 1.3M mcf of gas since January 1993, last reporting volume in April 2026 (statewide data runs through April 2026).

The last 12 reported months total 634 barrels of oil, down 2% on the year before; the lease peaked at 1.21K barrels in March 1997.

6 operators have filed production on it, most recently Extex Operating Company since February 2021.

70.6K
bbl oil, all reported
1.3M
mcf gas incl. casinghead
634
bbl oil, last 12 reported
-2%
vs the 12 before
2
wells completed on it
1.21K
peak month, bbl (Mar 1997)

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 634 · prior 12 650(-2%)

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 2,030 · prior 12 15,471(-87%)

01K2K3K2017201820192020202120222023202420252026

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. Phillips Petroleum CompanyJan 1993 → Sep 1995 · 33 mo
  2. Merit Energy CompanyOct 1995 → Jul 2010 · 178 mo
  3. PDC-WV-Co CorporationAug 2010 → Aug 2010 · 1 mo
  4. PDC EnergySep 2010 → Nov 2011 · 15 mo
  5. Legacy Reserves Operating LPDec 2011 → Jan 2021 · 110 mo
  6. Extex Operating CompanyFeb 2021 → Jul 2026 · 66 mo

Wells on the lease

FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL

2

wells completed on the lease

Producing
1
Shut In
1

Operates them now

Extex Operating Company
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-10-31218, documented in the API reference.