WELL · 42-255-33123 · DISTRICT 2
Richard Butler B Unit #3H
Karnes County · Eagleville (Eagle Ford-2) field · NO Production · Horizontal
Richard Butler B Unit #3H (API 42-255-33123) is a horizontal well in Karnes County operated by Marathon Oil EF LLC, completed June 9, 2023 and listed as no production on the RRC schedule.
The RRC has issued one drilling permit, issued April 17, 2013, permitted to 16,000 ft.
Completion filings report 13 formation tops, including Queen City, Reklaw, Carrizo, Wilcox.
Its lease has reported 156K barrels of oil and 185K mcf of gas since May 2013, last reporting in July 2026.
Operator of record
- Based in
- Houston, TX
- P-5 status
- Active (A)
- P-5 last filed
- Sep 26, 2025
- Permits on file
- 3,191
- Phone
- (832) 486-2737
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Marathon Oil EF LLC |
| Production reports | Marathon Oil EF LLCthrough Apr 2024 |
| Latest permit | Marathon Oil EF LLCApr 17, 2013 |
- 16,000
- total depth, ft
- 1
- permits on file
- Apr 17, 2013
- last permit issued
- Jun 9, 2023
- completed
- 156K
- cumulative oil, bbl
- 185K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · May 2013 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jun 9, 2023
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active (A)
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 |
|---|---|---|---|---|---|---|
| Richard Butler B Unit O-2-10619 | Eagleville (Eagle Ford-2) | Marathon Oil EF LLC | 1 | 156K | 185K | May 2013 – Jul 2026 |
Oil, barrels lease total
Last 12 months 0 · prior 12 0
Gas, mcf lease total
Last 12 months 0 · prior 12 0
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Marathon Oil EF LLCAug 2013 → Apr 2024
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 760612-99 | Drill | Marathon Oil EF LLC | Apr 12, 2013 | Apr 17, 2013 | Aug 5, 2013 | 16,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-2-10619 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 468 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Queen City | 3,503 | -3,035 |
| Reklaw | 3,960 | -3,492 |
| Carrizo | 4,671 | -4,203 |
| Wilcox | 7,265 | -6,797 |
| WilcoxWILCOX - DISPOSAL | 7,687 | -7,219 |
| WilcoxWILCOX-DISPOSAL | 7,687 | -7,219 |
| Escondido | 8,987 | -8,519 |
| Olmos | 9,701 | -9,233 |
| Anacacho | 10,952 | -10,484 |
| Austin Chalk | 11,097 | -10,629 |
| Austin ChalkAUSTIN CHALK - H2S | 11,097 | -10,629 |
| Eagle Ford | 11,289 | -10,821 |
| Eagle FordEAGLE FORD - H2S | 11,289 | -10,821 |
| EdwardsEDWARDS - H2S | — | — |
| FrioFRIO - DISPOSAL | — | — |
| FrioFRIO DISPOSAL | — | — |
| SligoSLIGO - H2S | — | — |
| YeguaYEGUA - DISPOSAL | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 11,899 | 15,199 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 5,003 | 12.25 | 1,315 S |
| 5.5 | 15,340 | 8.5 | 1,575 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 9, 2024 | Nov 14, 2024 | — |
| 00 | Aug 30, 2023 | Aug 21, 2023 | — |
| 00 | Nov 7, 2016 | Oct 27, 2016 | — |
| 00 | Oct 31, 2016 | Oct 27, 2016 | — |
| 00 | Nov 19, 2013 | Sep 10, 2013 | Yes |
| 00 | Oct 23, 2013 | Aug 27, 2013 | 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 42-255-33123 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-255-33123 → 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/25533123, documented in the API reference.