LEASES · O-14-7174 · OIL · DISTRICT 10

Lathem Mary K Unit

No volume since Sep 2023

High River Res Operating, LLC · Hartley County · Lathem (Canyon Granite Wash) field

Lathem Mary K Unit is an RRC oil lease (O-14-7174) in Hartley County operated by High River Res Operating, LLC, with one well completed on it.

It has reported 67K barrels of oil since December 1996, last reporting volume in September 2023 (statewide data runs through April 2026).

No volume was reported in the last 12 months; the last was in September 2023.

4 operators have filed production on it, most recently High River Res Operating, LLC since November 2025.

67K
bbl oil, all reported
0
mcf gas incl. casinghead
0
bbl oil, last 12 reported
—
vs the 12 before
1
wells completed on it
2.62K
peak month, bbl (Jul 1997)

PDQ LEASE REPORTS · FIRST DEC 1996 · LAST VOLUME SEP 2023 · 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 0 · prior 12 0

01002003002017201820192020202120222023202420252026

Who reported it

Each run of months one operator filed the production report, oldest first.

  1. Exxon Corp.Dec 1996 → Mar 2000 · 40 mo
  2. Exxon Mobil CorporationApr 2000 → May 2008 · 98 mo
  3. Rio Petroleum, Inc.Jun 2008 → Oct 2025 · 209 mo
  4. High River Res Operating, LLCNov 2025 → Jul 2026 · 9 mo

Wells on the lease

FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL

1

wells completed on the lease

Injection
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-14-7174, documented in the API reference.