WELL · 42-311-34662 · DISTRICT 1
Martin Mason HC9 #O 4H
McMullen County · Horizontal
Martin Mason Hc9 #O 4H (API 42-311-34662) is a permitted horizontal well in Mcmullen County filed by Chesapeake Operating, L.L.C.; no completion report is on file yet.
The RRC has issued 2 drilling permits (amended once) between 2011 and 2019, permitted to 12,000 ft.
Completion filings report 11 formation tops, including Frio, Catahoula, Yegua, Wilcox.
Its lease has reported 255K barrels of oil and 190K mcf of gas since February 2020, last reporting in July 2026.
Operator of record
Oklahoma City, OK · P-5 Delinquent, filed Sep 16, 2024 · 1,645 permits on file · (405) 935-3100
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | none |
| Production reports | Ineos USA Oil & Gas LLCthrough Apr 2026 |
| Latest permit | Chesapeake Operating, L.L.C.Dec 31, 2019 |
- 12,000
- total depth, ft
- 3
- permits on file
- Dec 31, 2019
- last permit issued
- —
- completed
- 255K
- cumulative oil, bbl
- 190K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Feb 2020 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- —
- Shut in
- —
- Plugged
- —
Surface location
28.600442, -98.687874
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in McMullen 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 |
|---|---|---|---|---|---|---|
| Martin Mason HC9 O-1-20203 | Eagleville (Eagle Ford-1) | Ineos USA Oil & Gas LLC | 1 | 255K | 190K | Feb 2020 – Jul 2026 |
Oil, barrels lease total
Last 12 months 12,046 · prior 12 19,951(-40%)
Gas, mcf lease total
Last 12 months 32,286 · prior 12 36,034(-10%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Chesapeake Operating, L.L.C.Aug 2020 → Mar 2023
- 2Ineos USA Oil & Gas LLCApr 2023 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 860313-98 | Drill | Chesapeake Operating, L.L.C. | Nov 24, 2020 | Dec 31, 2019 | Jan 14, 2020 | 10,000 |
| 860313-99 | Drill | Chesapeake Operating, L.L.C. | Dec 20, 2019 | Dec 31, 2019 | Jan 14, 2020 | 10,000 |
| 724403-99 | Drill | Chesapeake Operating, Inc. | Sep 16, 2011 | Sep 21, 2011 | — | 12,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-1-20203 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 463 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| FrioFRIO - DISPOSAL | 1,460 | -997 |
| CatahoulaCATAHOULA - DISPOSAL | 1,590 | -1,127 |
| YeguaYEGUA - DISPOSAL | 2,890 | -2,427 |
| WilcoxWILCOX - DISPOSAL | 4,750 | -4,287 |
| Escondido | 6,342 | -5,879 |
| Olmos | 7,196 | -6,733 |
| Navarro | 8,130 | -7,667 |
| San Miguel | 8,210 | -7,747 |
| Anacacho | 8,710 | -8,247 |
| Austin Chalk | 9,101 | -8,638 |
| Eagle FordEAGLE FORD - H2S | 9,310 | -8,847 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 10,225 | 22,505 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 4,070 | 12.25 | 1,280 S |
| 5.5 | 22,573 | 8.75 | 3,925 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 | Dec 10, 2020 | Nov 4, 2020 | Yes |
| 00 | Aug 4, 2020 | Jun 16, 2020 | 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 42-311-34662 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-311-34662 → 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.
Martin Mason HC642-311-37058
0.0 KM · Chesapeake Operating, L.L.C. · Section with this well →
| Frio | 1,460 | -997 |
| Catahoula | 1,590 | -1,127 |
| Yegua | 2,890 | -2,427 |
| Wilcox | 4,750 | -4,287 |
| Escondido | 6,370 | -5,907 |
| Olmos | 7,925 | -7,462 |
| Navarro | 8,130 | -7,667 |
| San Miguel | 8,224 | -7,761 |
10 TOPS · FIRST 8
Martin Mason HC742-311-37059
0.0 KM · Chesapeake Operating, L.L.C. · Section with this well →
| Frio | 1,460 | -997 |
| Catahoula | 1,590 | -1,127 |
| Yegua | 2,890 | -2,427 |
| Wilcox | 4,750 | -4,287 |
| Escondido | 6,417 | -5,954 |
| Olmos | 7,266 | -6,803 |
| Navarro | 8,130 | -7,667 |
| San Miguel | 8,228 | -7,765 |
11 TOPS · FIRST 8
Martin Mason HC842-311-37060
0.0 KM · Chesapeake Operating, L.L.C. · Section with this well →
| Frio | 1,460 | -997 |
| Catahoula | 1,590 | -1,127 |
| Yegua | 2,890 | -2,427 |
| Wilcox | 4,750 | -4,287 |
| Escondido | 6,337 | -5,874 |
| Olmos | 7,198 | -6,735 |
| Navarro | 8,130 | -7,667 |
| San Miguel | 8,174 | -7,711 |
10 TOPS · FIRST 8
Martin Mason HC342-311-37063
0.8 KM · Chesapeake Operating, L.L.C. · Section with this well →
| Frio | 1,460 | -989 |
| Catahoula | 1,590 | -1,119 |
| Yegua | 2,890 | -2,419 |
| Wilcox | 4,750 | -4,279 |
| Escondido | 6,347 | -5,876 |
| Olmos | 7,236 | -6,765 |
| Navarro | 8,130 | -7,659 |
| San Miguel | 8,205 | -7,734 |
11 TOPS · FIRST 8
Martin Mason HC242-311-37062
0.8 KM · Chesapeake Operating, L.L.C. · Section with this well →
| Frio | 1,460 | -989 |
| Catahoula | 1,590 | -1,119 |
| Yegua | 2,890 | -2,419 |
| Wilcox | 4,750 | -4,279 |
| Escondido | 6,351 | -5,880 |
| Olmos | 7,209 | -6,738 |
| Navarro | 8,130 | -7,659 |
| San Miguel | 8,162 | -7,691 |
11 TOPS · FIRST 8
Martin Mason HC142-311-37061
0.8 KM · Chesapeake Operating, L.L.C. · Section with this well →
| Frio | 1,460 | -989 |
| Catahoula | 1,590 | -1,119 |
| Yegua | 2,890 | -2,419 |
| Wilcox | 4,750 | -4,279 |
| Escondido | 6,347 | -5,876 |
| Olmos | 7,214 | -6,743 |
| Navarro | 8,130 | -7,659 |
| San Miguel | 8,243 | -7,772 |
11 TOPS · FIRST 8
Martin Mason HC442-311-37064
1.0 KM · Chesapeake Operating, L.L.C. · Section with this well →
| Frio | 1,460 | -988 |
| Catahoula | 1,590 | -1,118 |
| Yegua | 2,890 | -2,418 |
| Wilcox | 4,750 | -4,278 |
| Escondido | 6,334 | -5,862 |
| Olmos | 7,198 | -6,726 |
| Navarro | 8,130 | -7,658 |
| San Miguel | 8,187 | -7,715 |
11 TOPS · FIRST 8
Martin Mason HC542-311-37065
1.0 KM · Chesapeake Operating, L.L.C. · Section with this well →
| Frio | 1,460 | -988 |
| Catahoula | 1,590 | -1,118 |
| Yegua | 2,890 | -2,418 |
| Wilcox | 4,750 | -4,278 |
| Escondido | 6,330 | -5,858 |
| Olmos | 7,221 | -6,749 |
| Navarro | 8,130 | -7,658 |
| San Miguel | 8,177 | -7,705 |
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/31134662, documented in the API reference.