WELL · 42-393-30991 · DISTRICT 10

Chambers -A- #304

Y

Roberts County · Mendota NW. (Granite Wash SW.) field · Producing  · Vertical

Chambers -A- #304 (API 42-393-30991) is a well in Roberts County operated by Mmgl Txph LLC, completed April 16, 2006 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued December 27, 1983, permitted to 10,220 ft.

It was permitted by Tenneco Oil CO. and has since transferred to Mmgl Txph LLC on the wellbore schedule.

Completion filings report 4 formation tops, including Brown Dolomite, Douglas, Granite Wash, Atoka.

Its lease has reported 57.5K barrels of oil and 3.66M mcf of gas since January 1993, last reporting in July 2026. The lease carries 4 wells, so these are lease totals, not this well alone.

Operator of record

Mmgl Txph LLC

Permitted by Tenneco Oil Co.; the EWA schedule now lists a different operator.

Based in
Dallas, TX
P-5 status
Active (A)
P-5 last filed
Jul 24, 2025
Permits on file
10
Phone
(972) 701-8377

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleMmgl Txph LLC
Production reportsMmgl Txph, LLCthrough Apr 2026
Latest permitTenneco Oil Co.Dec 27, 1983

The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.

10,220
total depth, ft
1
permits on file
Dec 27, 1983
last permit issued
Apr 16, 2006
completed
57.5K
cumulative oil, bbl
3.66M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Apr 16, 2006
Shut in
—
Plugged
—

Operator's P-5 on the schedule: Active – Extension (X)

Surface location

No coordinates on the permit record yet. The RRC's GIS record usually lands within days of issuance; historical master-file permits never carry one.

Lease production

PDQ LEASE REPORTS · REPORTED THROUGH APR 2026

Texas reports oil by lease, not by well. These are the lease this well is completed on; they carry 4 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Chambers -A- O-14-5902Mendota, NW. (Granite Wash, SW.)Mmgl Txph, LLC457.5K3.66MJan 1993 – Jul 2026

Gas, mcf lease total

Last 12 months 50,763 · prior 12 57,942(-12%)

05K10K202420252026

Oil, barrels lease total

Last 12 months 446 · prior 12 444(+0%)

050100150202420252026

Chain of custody

Every operator that reported production on this well's lease, in order.

  1. 1Seagull Midcon Inc.Jan 1993 → May 1998
  2. 2Seagull Energy E&P Inc.Jun 1998 → Oct 2000
  3. 3Ocean Energy, Inc.Nov 2000 → Aug 2003
  4. 4Devon Louisiana CorporationSep 2003 → Dec 2005
  5. 5Devon Energy Production Co, L.P.Jan 2006 → Jun 2016
  6. 6Tecolote Energy Operating, LLCJul 2016 → Dec 2019
  7. 7Blackbeard Operating, LLCJan 2020 → Sep 2023
  8. 8Mmgl Txph, LLCOct 2023 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
224741-99DrillTenneco Oil Co.Dec 6, 1983Dec 27, 1983—10,150

Completions

CompletedLeaseFieldOperatorStatusDepth
Apr 16, 2006Chambers -A- O-14-5902Mendota NW. (Granite Wash SW.)Mmgl Txph LLCProducing10,220
May 7, 1984Chambers O-14-5769Mendota NW. (Granite Wash SW.)Mmgl Txph LLCNot on Schedule—
May 5, 1984Chambers G-14-111011Mendota NW. (Granite Wash SW.)Tenneco Oil Co.Not on Schedule—

Formation tops

As filed on W-2/G-1. Subsea from 2,684 ft elevation.Download CSV →

FormationMD ftSubsea
Brown Dolomite3,978-1,294
Douglas6,649-3,965
Granite Wash9,066-6,382
Atoka10,184-7,500

Perforations

Perforated and open-hole intervals.

FromToType
9,6079,614Perforated
9,6179,666Perforated
9,6689,686Perforated
9,6909,696Perforated
9,79010,079Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
8.6252,720—1,925 S
8.6252,72012.251,925 sx
3.510,214—325 S
5.510,220—220 S
5.510,2207.875240 sx

Completion filings

W-2 and G-1 reports on record in the RRC wellbore file, newest first. The suffix identifies the wellbore or completion event. About these reports →

SuffixFiledW-2 / G-1 dateLogs referenced
00Jul 8, 2010Apr 29, 2010—
00Nov 15, 1984Aug 22, 1984—
00Oct 12, 1984——
00Sep 25, 1984Aug 22, 1984—
00Jul 26, 1984Jun 6, 1984—
00Jun 30, 1984Jun 6, 1984—

The source documents

Petrora holds the structured record. The scanned filings live at the RRC; these links open its search already filled in for this API.

Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward). then paste it into their search.

About this data

Permits from the RRC OGA049M master and daily daf420 files; wellbore and operator of record from the EWA schedule, weekly; completions, formation tops, casing, and perforations from the dbf900 wellbore file; production from PDQ lease reports, which lag two to three months; injection from UIC permits, H-10 reports, and TexNet daily volumes; earthquakes from the TexNet catalog.

New to these records? How to read a well page · API numbers · completion reports and tops · why production is by lease

Developers: this page as JSON is GET /v1/data/wells/39330991, documented in the API reference.