WELL · 42-127-38147 · DISTRICT 1
Marmion-Thornhill HC1 #1H
Dimmit County · Briscoe Ranch (Eagleford) field · Horizontal
Marmion-Thornhill Hc1 #1H (API 42-127-38147) is a horizontal well in Dimmit County operated by Ineos USA Oil & Gas LLC, completed September 5, 2019.
The RRC has issued one drilling permit (amended once), issued May 15, 2019, permitted to 9,000 ft.
It was permitted by Chesapeake Operating, L.L.C. and has since transferred to Ineos USA Oil & Gas LLC on the wellbore schedule.
Completion filings report 10 formation tops, including Escondido, Olmos, San Miguel, Anacacho.
No lease production has been reported under this well’s leases.
Operator of record
Permitted by Chesapeake Operating, L.L.C.; the EWA schedule now lists a different operator.
Denver, CO · P-5 Y, filed Apr 4, 2026 · 98 permits on file · (833) 402-7779
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Ineos USA Oil & Gas LLC |
| Production reports | Ineos USA Oil & Gas LLCthrough Apr 2026 |
| Latest permit | Chesapeake Operating, L.L.C.May 15, 2019 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 9,000
- total depth, ft
- 2
- permits on file
- May 15, 2019
- last permit issued
- Sep 5, 2019
- completed
- 0
- cumulative oil, bbl
- 867K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Sep 2019 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Sep 5, 2019
- Shut in
- —
- Plugged
- —
Surface location
28.420437, -99.728618
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Dimmit County.
Lease production
PDQ LEASE REPORTS · REPORTED THROUGH APR 2026
Texas reports oil by lease, not by well. These are the 2 leases this well is completed on; they carry 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Marmion-Thornhill HC1 G-1-301158 | Briscoe Ranch (Eagleford) | Ineos USA Oil & Gas LLC | 1 | 0 | 867K | Sep 2019 – Jul 2026 |
| Marmion-Thornhill HC1 O-1-19961 | Briscoe Ranch (Eagleford) | Ineos USA Oil & Gas LLC | 1 | 0 | 0 | Sep 2019 – Apr 2026 |
Gas, mcf lease total
Last 12 months 102,005 · prior 12 63,813(+60%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Ineos USA Oil & Gas LLCSep 2019 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 852914-98 | Drill | Chesapeake Operating, L.L.C. | Jun 14, 2019 | May 15, 2019 | Jun 6, 2019 | 9,000 |
| 852914-99 | Drill | Chesapeake Operating, L.L.C. | May 8, 2019 | May 15, 2019 | Jun 6, 2019 | 9,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-1-301158 | — | — | — | — |
| — | — O-1-19961 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 640 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| EscondidoESCONDIDO - DISPOSAL | 2,583 | -1,943 |
| OlmosOLMOS - DISPOSAL | 3,545 | -2,905 |
| San MiguelSAN MIGUEL - H2S | 4,805 | -4,165 |
| Anacacho | 5,741 | -5,101 |
| Austin ChalkAUSTIN CHALK - H2S | 6,070 | -5,430 |
| Eagle FordEAGLE FORD - H2S | 6,610 | -5,970 |
| EdwardsEDWARDS - H2S | — | — |
| GeorgetownGEORGETOWN - H2S | — | — |
| Glen RoseGLEN ROSE - DISPOSAL | — | — |
| Pearsall | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,130 | 17,232 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 1,460 | 12.25 | 490 S |
| 5.5 | 17,344 | 8.75 | 3,245 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 | Mar 30, 2026 | Mar 9, 2026 | Yes |
| 00 | Mar 10, 2020 | Nov 25, 2019 | 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 42-127-38147 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-127-38147 → 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.
Marmion-Thornhill HC242-127-38152
0.0 KM · Chesapeake Operating, L.L.C. · Section with this well →
| Escondido | 2,591 | -1,951 |
| Olmos | 3,532 | -2,892 |
| San Miguel | 4,796 | -4,156 |
| Anacacho | 5,753 | -5,113 |
| Austin Chalk | 6,069 | -5,429 |
| Eagle Ford | 6,602 | -5,962 |
| Georgetown | — | |
| Pearsall | — |
10 TOPS · FIRST 8
Cmww HC1 Dim42-127-38148
0.0 KM · Chesapeake Operating, L.L.C. · Section with this well →
| Escondido | 2,580 | -1,939 |
| Olmos | 3,545 | -2,904 |
| San Miguel | 4,811 | -4,170 |
| Anacacho | 5,733 | -5,092 |
| Austin Chalk | 6,060 | -5,419 |
| Eagle Ford | 6,597 | -5,956 |
| Edwards | — | |
| Georgetown | — |
10 TOPS · FIRST 8
Cmww HC2 Dim42-127-38149
0.6 KM · Chesapeake Operating, L.L.C. · Section with this well →
| Escondido | 2,553 | -1,933 |
| Olmos | 3,755 | -3,135 |
| San Miguel | 4,758 | -4,138 |
| Anacacho | 5,727 | -5,107 |
| Austin Chalk | 6,048 | -5,428 |
| Eagle Ford | 6,586 | -5,966 |
| Georgetown | — | |
| Pearsall | — |
10 TOPS · FIRST 8
Walk a Jam D-F HC142-127-38137
0.6 KM · Chesapeake Operating, L.L.C. · Section with this well →
| Escondido | 2,554 | -1,934 |
| Olmos | 3,508 | -2,888 |
| San Miguel | 4,773 | -4,153 |
| Anacacho | 5,723 | -5,103 |
| Austin Chalk | 6,045 | -5,425 |
| Eagle Ford | 6,593 | -5,973 |
| Edwards | — | |
| Georgetown | — |
10 TOPS · FIRST 8
Walk a Jam D-F HC242-127-38138
0.7 KM · Chesapeake Operating, L.L.C. · Section with this well →
| Escondido | 2,555 | -1,928 |
| Olmos | 3,508 | -2,881 |
| San Miguel | 4,775 | -4,148 |
| Anacacho | 5,727 | -5,100 |
| Austin Chalk | 6,049 | -5,422 |
| Eagle Ford | 6,592 | -5,965 |
| Glen Rose | — | |
| Georgetown | — |
10 TOPS · FIRST 8
Cmww Unit a Dim42-127-38097
1.1 KM · Chesapeake Operating, L.L.C. · Section with this well →
| Escondido | 2,536 | -1,928 |
| Olmos | 3,789 | -3,181 |
| San Miguel | 4,755 | -4,147 |
| Anacacho | 5,705 | -5,097 |
| Austin Chalk | 6,028 | -5,420 |
| Eagle Ford | 6,580 | -5,972 |
| Glen Rose | — | |
| Pearsall | — |
10 TOPS · FIRST 8
Walk a Jam C-E HC142-127-38135
1.1 KM · Chesapeake Operating, L.L.C. · Section with this well →
| Escondido | 2,544 | -1,937 |
| Olmos | 3,806 | -3,199 |
| San Miguel | 4,772 | -4,165 |
| Anacacho | 5,686 | -5,079 |
| Austin Chalk | 6,043 | -5,436 |
| Eagle Ford | 6,600 | -5,993 |
| Edwards | — | |
| Glen Rose | — |
10 TOPS · FIRST 8
Gibson Unit 1 Dim42-127-38099
1.1 KM · Chesapeake Operating, L.L.C. · Section with this well →
| Escondido | 2,553 | -1,926 |
| Olmos | 3,784 | -3,157 |
| San Miguel | 4,755 | -4,128 |
| Anacacho | 5,718 | -5,091 |
| Austin Chalk | 6,051 | -5,424 |
| Eagle Ford | 6,581 | -5,954 |
| Georgetown | — | |
| Pearsall | — |
10 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/12738147, documented in the API reference.