WELL · 42-405-30743 · DISTRICT 6
Marco Gas Unit #4H
San Augustine County · Carthage (Haynesville Shale) field · Producing · Horizontal
Marco Gas Unit #4H (API 42-405-30743) is a horizontal well in San Augustine County operated by Adamas Energy LLC, completed March 29, 2023 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued October 15, 2021, permitted to 14,000 ft.
It was permitted by Aethon Energy Operating LLC and has since transferred to Adamas Energy LLC on the wellbore schedule.
Completion filings report 4 formation tops, including Cotton Valley, Austin Chalk, James Lime, Haynesville.
No lease production has been reported under this well’s leases.
Operator of record
Permitted by Aethon Energy Operating LLC; the EWA schedule now lists a different operator.
Dover, DE · P-5 Y, filed Jan 6, 2026 · 67 permits on file · (800) 274-0033
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Adamas Energy LLC |
| Production reports | Adamas Energy LLCthrough Apr 2026 |
| Latest permit | Aethon Energy Operating LLCOct 15, 2021 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 14,000
- total depth, ft
- 2
- permits on file
- Oct 15, 2021
- last permit issued
- Mar 29, 2023
- completed
- 0
- cumulative oil, bbl
- 11M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Nov 2022 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Mar 29, 2023
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active
Surface location
31.569936, -94.084170
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in San Augustine 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 |
|---|---|---|---|---|---|---|
| Marco Gas Unit G-6-294294 | Carthage (Haynesville Shale) | Adamas Energy LLC | 1 | 0 | 11M | Nov 2022 – Jul 2026 |
Gas, mcf lease total
Last 12 months 1,395,629 · prior 12 2,601,923(-46%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Aethon Energy Operating LLCMar 2023 → Feb 2026
- 2Adamas Energy LLCMar 2026 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 873570-98 | Drill | Aethon Energy Operating LLC | Aug 10, 2022 | Oct 15, 2021 | Aug 29, 2022 | 14,000 |
| 873570-99 | Drill | Aethon Energy Operating LLC | Oct 11, 2021 | Oct 15, 2021 | Aug 29, 2022 | 14,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-6-294294 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 450 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Cotton Valley | 999 | -549 |
| Austin Chalk | 4,271 | -3,821 |
| James Lime | 7,546 | -7,096 |
| James Lime | 7,584 | -7,134 |
| Cotton Valley | 11,372 | -10,922 |
| Haynesville | 13,288 | -12,838 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 13,680 | 21,500 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 2,400 | 13.5 | 1,050 S |
| 5.5 | 12,254 | 6.75 | 1,200 S |
| 7.625 | 12,389 | 9.875 | 1,270 S |
| 5 | 21,521 | 6.75 | 1,200 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 | Aug 10, 2023 | Jul 10, 2023 | — |
| 00 | Apr 25, 2023 | Feb 23, 2023 | Yes |
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 42-405-30743 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-405-30743 → 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.
Marco Gas Unit42-405-30744
0.0 KM · Aethon Energy Operating LLC · Section with this well →
| Austin Chalk | 4,279 | -3,829 |
| James Lime | 7,542 | -7,092 |
| Cotton Valley | 11,369 | -10,919 |
| Haynesville | 12,890 | -12,440 |
Marco Gas Unit42-405-30742
0.0 KM · Aethon Energy Operating LLC · Section with this well →
| Austin Chalk | 4,266 | -3,816 |
| James Lime | 7,542 | -7,092 |
| Cotton Valley | 11,372 | -10,922 |
| Haynesville | 12,898 | -12,448 |
Marco Gas Unit42-405-30741
0.0 KM · Aethon Energy Operating LLC · Section with this well →
| Austin Chalk | 4,258 | -3,808 |
| James Lime | 7,545 | -7,095 |
| Cotton Valley | 11,361 | -10,911 |
| Haynesville | 13,286 | -12,836 |
Bland Lake 1 SWD42-405-30810
1.8 KM · Brahma Services LLC · Section with this well →
| Austin Chalk | 4,183 | -3,774 |
| James Lime | 4,660 | -4,251 |
| Edwards | 4,660 | -4,251 |
| Haynesville | 5,322 | -4,913 |
| Glen Rose | 5,322 | -4,913 |
| Rodessa | — | |
| Ferry Lake | — | |
| Mooringsport | — |
Clark-Armstrong F42-405-30805
2.2 KM · Aethon Energy Operating LLC · Section with this well →
| Austin Chalk | 4,172 | -3,783 |
| James Lime | 7,434 | -7,045 |
| Haynesville | 12,110 | -11,721 |
Clark-Armstrong F42-405-30799
2.2 KM · Aethon Energy Operating LLC · Section with this well →
| Austin Chalk | 4,172 | -3,783 |
| James Lime | 7,434 | -7,045 |
| Cotton Valley | 11,243 | -10,854 |
| Haynesville | 12,314 | -11,925 |
Clark-Armstrong D42-405-30804
2.3 KM · Aethon Energy Operating LLC · Section with this well →
| Austin Chalk | 4,184 | -3,795 |
| James Lime | 7,447 | -7,058 |
| Haynesville | 11,247 | -10,858 |
| Cotton Valley | 11,247 | -10,858 |
Clark-Armstrong D42-405-30803
2.3 KM · Aethon Energy Operating LLC · Section with this well →
| Austin Chalk | 4,174 | -3,785 |
| James Lime | 7,440 | -7,051 |
| Cotton Valley | 11,248 | -10,859 |
| Haynesville | 13,216 | -12,827 |
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/40530743, documented in the API reference.