WELL · 42-423-31949 · DISTRICT 6

Swann, M. C. #12

Swann, M. C. #12 (API 42-423-31949) is a permitted well in Smith County filed by Breitburn Operating L.P.; no completion report is on file yet.

The RRC has issued 2 drilling permits between 2005 and 2021, permitted to 12,000 ft.

Completion filings report 3 formation tops, including Cotton Valley, Taylor, Bossier.

Operator of record

Breitburn Operating L.P.

Keithville, LA · P-5 Y, filed Mar 4, 2026 · 323 permits on file · (866) 616-9445

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore schedule	none
Production reports	Diversified Production LLCthrough Apr 2026
Latest permit	Breitburn Operating L.P.Apr 8, 2021

12,000: total depth, ft
2: permits on file
Apr 8, 2021: last permit issued
—: completed
0: cumulative oil, bbl
675K: cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Oct 2005 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule: OFF SCHEDULE
Completed: —
Shut in: —
Plugged: —

Surface location

32.144137, -95.099465

OpenStreetMap → · Google Maps →

Permit surface location from the RRC GIS record, in Smith County.

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; this well is the only one on it.Why →

Lease	Field	Reporting operator	Wells	Oil, bbl	Gas, mcf	Reported
Swann, M. C. G-6-216043	Overton (Cotton Valley Sand)	Diversified Production LLC	1	0	675K	Oct 2005 – Jul 2026

Gas, mcf lease total

Last 12 months 147 · prior 12 676(-78%)

Chain of custody

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

1Encore Operating, L.P.Oct 2005 → Aug 2010
2Quantum Resources Management,llcSep 2010 → Dec 2014
3Breitburn Operating L.P.Jan 2015 → Sep 2024
4Diversified Production LLCOct 2024 → Apr 2026

Permits

Permit	Type	Operator	Received	Issued	Spud	Depth
868835-99	Recompletion	Breitburn Operating L.P.	Apr 1, 2021	Apr 8, 2021	—	11,975
561043-99	Drill	Encore Operating, L.P.	Apr 25, 2005	Apr 26, 2005	—	12,000

Completions

Completed	Lease	Field	Operator	Status	Depth
—	— G-6-216043	—	—	—	—

Formation tops

As filed on W-2/G-1. Subsea from 438 ft elevation.Download CSV →

Formation	MD ft	Subsea
Cotton ValleyTOP COTTON VALLEY	10,289	-9,851
TaylorTAYLOR SAND	11,614	-11,176
BossierBOSSIER SHALE	11,874	-11,436

Perforations

Perforated and open-hole intervals.

From	To	Type
11,603	11,789	Perforated

Casing

Strings as reported, shallowest first.

Casing in	Set at	Hole in	Cement
8.625	4,505	11	1,245 S
5.5	11,975	7.875	1,320 S

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 →

Suffix	Filed	W-2 / G-1 date	Logs referenced
00	Sep 20, 2006	Nov 14, 2005	Yes
00	May 26, 2006	—	—

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.

Wellbore filings for 42-423-31949 → W-2, G-1, plugging reports, as PDFs
Completion packets for 42-423-31949 → scanned completion filings

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

Nearby wells and their tops

NEAREST 8 LOCATED WELLS WITH TOPS · WITHIN 16 KM

Draw a cross-section

This well's tops beside its 5 nearest neighbours, subsea-aligned so they line up regardless of surface terrain.

Open the cross-section →

Swann, M.C.42-423-31950

0.6 KM · Encore Operating, L.P. · Section with this well →

Massive Anhydrite (marker)	7,471	-6,996
Travis Peak	8,293	-7,818
Cotton Valley	10,229	-9,754
Cotton Valley	10,229	-9,754
Taylor	11,594	-11,119
Bosiser Shale	11,850	-11,375

Swann, M.C.42-423-31995

0.8 KM · Encore Operating, L.P. · Section with this well →

Buda	5,143	-4,640
Travis Peak	8,546	-8,043
Cotton Valley	10,272	-9,769
Cotton Valley	10,272	-9,769
Taylor	11,577	-11,074
Bossier	11,843	-11,340

McElroy42-423-31924

1.0 KM · Encore Operating, L.P. · Section with this well →

Massive Anhydrite (marker)	7,224	-6,035
Pettit	8,100	-6,911
Travis Peak	8,341	-7,152
Cotton Valley	10,242	-9,053
Taylor	11,546	-10,357

McElroy A42-073-31154

1.1 KM · Windsor Energy Group, L.L.C. · Section with this well →

Pettit	8,194	-7,714
Travis Peak	8,470	-7,990
Cotton Valley	10,284	-9,804
Bossier	11,825	-11,345

Moore-Swann-McElroy (Alloc)42-423-32416

1.4 KM · Tanos Exploration II, LLC · Section with this well →

Nacatoch	2,500	-1,990
Woodbine	4,020	-3,510
Paluxy	5,550	-5,040
Rodessa	7,460	-6,950
Pettit	8,120	-7,610
Travis Peak	8,360	-7,850
Cotton Valley	10,360	-9,850

Swann-McElroy (Alloc)42-423-32417

1.4 KM · Tanos Exploration II, LLC · Section with this well →

Nacatoch	2,490	-1,977
Woodbine	4,010	-3,497
Paluxy	5,530	-5,017
Rodessa	7,440	-6,927
Pettit	8,100	-7,587
Travis Peak	8,340	-7,827
Cotton Valley	10,340	-9,827

Northcutt-Burke B (AW)42-073-31587

1.6 KM · Sabine Oil & Gas Corporation · Section with this well →

Nacatoch	2,513	-2,096
Sub-Clarksville	4,000	-3,583
Woodbine	4,036	-3,619
Paluxy	5,645	-5,228
Glen Rose	5,919	-5,502
Rodessa	7,776	-7,359
James Lime	8,001	-7,584
Pettit	8,233	-7,816

11 TOPS · FIRST 8

Northcutt-Burke a (AW)42-073-31586

1.6 KM · Sabine Oil & Gas Corporation · Section with this well →

Nacatoch	2,515	-2,098
Sub-Clarksville	4,029	-3,612
Woodbine	4,045	-3,628
Paluxy	5,695	-5,278
Glen Rose	5,955	-5,538
Rodessa	7,822	-7,405
James Lime	8,053	-7,636
Pettit	8,281	-7,864

11 TOPS · FIRST 8

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/42331949, documented in the API reference.