TEXAS · WELLS · HARRISON COUNTY · MARSHALL GAS UNIT LEASE · API 42-203-34630 · DISTRICT 06
Marshall Gas Unit #1H
Harrison County · Carthage (Haynesville Shale) field · Producing · Horizontal
Marshall Gas Unit #1H (API 42-203-34630) is a horizontal well in Harrison County operated by Comstock Oil & Gas LLC, completed June 15, 2010 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued September 9, 2008, permitted to 11,019 ft.
It was permitted by Penn Virginia Oil & Gas, L.P. and has since transferred to Comstock Oil & Gas LLC on the wellbore schedule.
Completion filings report 3 formation tops, including Travis Peak, Cotton Valley, Bossier.
No lease production has been reported under this well’s leases.
Operator of record
Permitted by Penn Virginia Oil & Gas, L.P.; the EWA schedule now lists a different operator.
- Based in
- Frisco, TX
- P-5 status
- Active (A)
- P-5 last filed
- Jul 28, 2025
- Permits on file
- 239
- Phone
- (972) 668-8800
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Comstock Oil & Gas LLC |
| Production reports | Comstock Oil & Gas, LLCthrough Apr 2026 |
| Latest permit | Penn Virginia Oil & Gas, L.P.Sep 26, 2008 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 11,019
- total depth, ft
- 2
- permits on file
- Sep 26, 2008
- last permit issued
- Jun 15, 2010
- completed
- 0
- cumulative oil, bbl
- 910K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Feb 2009 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jun 15, 2010
- 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; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Marshall Gas Unit G-6-247366 | Carthage, North (Bossier Shale) | Comstock Oil & Gas, LLC | 1 | 0 | 910K | Feb 2009 – Jul 2026 |
Gas, mcf lease total
Last 12 months 21,691 · prior 12 21,351(+2%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Penn Virginia Oil & Gas, L.P.Feb 2009 → Sep 2015
- 2Covey Park Operating LLCOct 2015 → Apr 2016
- 3Covey Park Resources LLCJun 2016 → Aug 2019
- 4Comstock Oil & Gas, LLCSep 2019 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 669373-98 | Drill | Penn Virginia Oil & Gas, L.P. | Sep 10, 2008 | Sep 26, 2008 | Nov 23, 2008 | 14,000 |
| 669373-99 | Drill | Penn Virginia Oil & Gas, L.P. | Aug 19, 2008 | Sep 9, 2008 | — | 14,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jun 15, 2010 | Marshall Gas Unit G-6-247366 | Carthage (Haynesville Shale) | Comstock Oil & Gas LLC | Producing | 11,019 |
Formation tops
As filed on W-2/G-1. Subsea from 230 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Travis Peak | 6,530 | -6,300 |
| Cotton Valley | 8,630 | -8,400 |
| BossierBOSSIER SHALE | 10,135 | -9,905 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 10,387 | 14,784 | Perforated |
| 10,552 | 10,708 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.5 | 1,529 | 17.5 | 985 S |
| 13.125 | 1,529 | 17.5 | 985 S |
| 4.5 | 9,375 | 7.625 | — |
| 4.5 | 9,995 | — | 758 S |
| 4.5 | 9,995 | 7.625 | — |
| 7.625 | 10,387 | 10.625 | 1,816 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 10, 2010 | Jun 23, 2010 | — |
| 00 | Dec 10, 2009 | Sep 24, 2009 | — |
| 00 | Jun 12, 2009 | Mar 9, 2009 | Yes |
| 00 | May 28, 2009 | — | — |
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 42-203-34630 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-203-34630 → 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.
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/20334630, documented in the API reference.