WELL · 42-123-35152 · DISTRICT 2
Big Oak B #4H
DE Witt County · Eagleville (Eagle Ford-2) field · Producing · Horizontal
Big Oak B #4H (API 42-123-35152) is a horizontal well in De Witt County operated by Devon Energy Production CO L.P., completed May 17, 2026 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued February 28, 2022, permitted to 12,841 ft.
It was permitted by Bpx Operating Company and has since transferred to Devon Energy Production CO L.P. on the wellbore schedule.
Completion filings report 8 formation tops, including Catahoula, Frio, Vicksburg, Yegua.
No lease production has been reported under this well’s leases.
Operator of record
Devon Energy Production Co L.P.
Permitted by BPX Operating Company; the EWA schedule now lists a different operator.
Oklahoma City, OK · P-5 Y, filed Nov 4, 2025 · 9,266 permits on file · (800) 465-8314
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Devon Energy Production Co L.P. |
| Production reports | Devon Energy Production Co, L.P.through Dec 2025 |
| Latest permit | BPX Operating CompanyFeb 28, 2022 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 12,841
- total depth, ft
- 1
- permits on file
- Feb 28, 2022
- last permit issued
- May 17, 2026
- completed
- 0
- cumulative oil, bbl
- 1.2M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Aug 2022 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- May 17, 2026
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active
Surface location
29.274262, -97.302474
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in DE Witt 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 |
|---|---|---|---|---|---|---|
| Big Oak B G-2-293691 | Eagleville (Eagle Ford-2) | Devon Energy Production Co, L.P. | 1 | 0 | 1.2M | Aug 2022 – Jul 2026 |
Gas, mcf lease total
Last 12 months 86,769 · prior 12 202,075(-57%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Devon Energy Production Co, L.P.Dec 2022 → Dec 2025
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 877398-99 | Drill | BPX Operating Company | Feb 24, 2022 | Feb 28, 2022 | Sep 26, 2022 | 12,841 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-2-293691 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 329 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Catahoula | 1,000 | -671 |
| Frio | 1,800 | -1,471 |
| Vicksburg | 2,400 | -2,071 |
| Yegua | 3,000 | -2,671 |
| Wilcox | 5,441 | -5,112 |
| Austin Chalk | 12,285 | -11,956 |
| Eagle Ford | 12,825 | -12,496 |
| EdwardsEDWARDS - H2S | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 13,150 | 19,708 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 4,300 | 12.25 | 1,568 S |
| 5.5 | 19,805 | 8.75 | 3,679 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 | May 28, 2026 | May 18, 2026 | — |
| 00 | Jan 21, 2026 | Jan 19, 2026 | — |
| 00 | May 1, 2023 | Mar 26, 2023 | Yes |
| 00 | Jan 11, 2023 | Dec 29, 2022 | 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 42-123-35152 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-123-35152 → 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.
Big Oak B42-123-35153
0.0 KM · BPX Operating Company · Section with this well →
| Catahoula | 1,000 | -671 |
| Frio | 1,800 | -1,471 |
| Vicksburg | 2,400 | -2,071 |
| Yegua | 3,000 | -2,671 |
| Wilcox | 5,462 | -5,133 |
| Austin Chalk | 12,296 | -11,967 |
| Eagle Ford | 12,801 | -12,472 |
| Edwards | — |
Big Oak B42-123-35151
0.0 KM · BPX Operating Company · Section with this well →
| Catahoula | 1,000 | -671 |
| Frio | 1,800 | -1,471 |
| Vicksburg | 2,400 | -2,071 |
| Yegua | 3,000 | -2,671 |
| Wilcox | 5,461 | -5,132 |
| Austin Chalk | 12,275 | -11,946 |
| Eagle Ford | 12,779 | -12,450 |
| Edwards | — |
Big Oak B42-123-35167
0.0 KM · BPX Operating Company · Section with this well →
| Catahoula | 1,000 | -671 |
| Frio | 1,800 | -1,471 |
| Vicksburg | 2,400 | -2,071 |
| Yegua | 3,000 | -2,671 |
| Wilcox | 5,459 | -5,130 |
| Austin Chalk | 12,308 | -11,979 |
| Eagle Ford | 12,846 | -12,517 |
| Edwards | — |
J-Hermann E42-123-32539
0.6 KM · Petrohawk Operating Company · Section with this well →
| Pecan Gap | 11,927 | -11,615 |
| Austin Chalk | 12,173 | -11,861 |
| Eagle Ford | 12,728 | -12,416 |
Big Oak B42-123-35619
0.6 KM · Devon Energy Production Co, L.P. · Section with this well →
| Catahoula | 965 | -645 |
| Frio | 1,762 | -1,442 |
| Vicksburg | 2,341 | -2,021 |
| Yegua | 2,924 | -2,604 |
| Wilcox | 5,397 | -5,077 |
| Austin Chalk | 12,209 | -11,889 |
| Eagle Ford | 12,778 | -12,458 |
| Edwards | — |
Big Oak A42-123-35618
0.6 KM · Devon Energy Production Co, L.P. · Section with this well →
| Catahoula | 954 | -634 |
| Frio | 1,757 | -1,437 |
| Vicksburg | 2,300 | -1,980 |
| Yegua | 2,920 | -2,600 |
| Wilcox | 5,393 | -5,073 |
| Austin Chalk | 12,218 | -11,898 |
| Eagle Ford | 12,744 | -12,424 |
| Edwards | — |
Big Oak A42-123-35617
0.6 KM · Devon Energy Production Co, L.P. · Section with this well →
| Catahoula | 942 | -621 |
| Frio | 1,743 | -1,422 |
| Vicksburg | 2,322 | -2,001 |
| Yegua | 2,905 | -2,584 |
| Wilcox | 5,378 | -5,057 |
| Austin Chalk | 12,201 | -11,880 |
| Eagle Ford | 12,732 | -12,411 |
| Edwards | — |
Big Oak A42-123-35616
0.6 KM · Devon Energy Production Co, L.P. · Section with this well →
| Catahoula | 932 | -611 |
| Frio | 1,729 | -1,408 |
| Vicksburg | 2,307 | -1,986 |
| Yegua | 2,892 | -2,571 |
| Wilcox | 5,365 | -5,044 |
| Austin Chalk | 12,193 | -11,872 |
| Eagle Ford | 12,722 | -12,401 |
| Edwards | — |
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/12335152, documented in the API reference.