LEASES · O-3-25759 · OIL · DISTRICT 03

McWilliams Oil Unit

No volume since Dec 2015

Atlas Operating LLC · Matagorda County · Hamman field

Mcwilliams Oil Unit is an RRC oil lease (O-3-25759) in Matagorda County operated by Atlas Operating LLC, with one well completed on it.

It has reported 11K barrels of oil and 115K mcf of gas since February 2011, last reporting volume in December 2015 (statewide data runs through April 2026).

No volume was reported in the last 12 months; the last was in December 2015.

3 operators have filed production on it, most recently Atlas Operating LLC since January 2018.

11K
bbl oil, all reported
115K
mcf gas incl. casinghead
0
bbl oil, last 12 reported
—
vs the 12 before
1
wells completed on it
3.7K
peak month, bbl (Mar 2011)

PDQ LEASE REPORTS · FIRST FEB 2011 · LAST VOLUME DEC 2015 · 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

012016201720182019202020212022202320242025

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

05001K2016201720182019202020212022202320242025

Who reported it

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

  1. Alta Mesa Services, LPFeb 2011 → Dec 2015 · 59 mo
  2. Gaither Petroleum CorporationJan 2016 → Dec 2017 · 24 mo
  3. Atlas Operating LLCJan 2018 → May 2025 · 89 mo

Wells on the lease

FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL

1

wells completed on the lease

NO Type on File
1

Operates them now

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-3-25759, documented in the API reference.