WELL · 42-255-35945 · DISTRICT 2
Bernice Unit #12H
Karnes County · Eagleville (Eagle Ford-2) field · Producing · Horizontal
Bernice Unit #12H (API 42-255-35945) is a horizontal well in Karnes County operated by Devon Energy Production CO L.P., completed September 23, 2018 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued May 18, 2018, permitted to 10,650 ft.
It was permitted by Encana Oil & Gas(USA) Inc. and has since transferred to Devon Energy Production CO L.P. on the wellbore schedule.
Completion filings report 10 formation tops, including Yegua, Queen City, Reklaw, Carrizo.
Its lease has reported 1.55M barrels of oil and 763K mcf of gas since November 2012, last reporting in July 2026. The lease carries 6 wells, so these are lease totals, not this well alone.
Operator of record
Devon Energy Production Co L.P.
Permitted by Encana Oil & Gas(usa) Inc.; the EWA schedule now lists a different operator.
- Based in
- Oklahoma City, OK
- P-5 status
- Active (A)
- P-5 last filed
- Dec 18, 2025
- Permits on file
- 9,266
- Phone
- (405) 235-3611
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 Apr 2026 |
| Latest permit | Encana Oil & Gas(usa) Inc.May 18, 2018 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 10,650
- total depth, ft
- 2
- permits on file
- May 18, 2018
- last permit issued
- Sep 23, 2018
- completed
- 1.55M
- cumulative oil, bbl
- 763K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Nov 2012 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Sep 23, 2018
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active (A)
Surface location
28.969386, -98.007917
Permit surface location from the RRC GIS record, in Karnes 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; they carry 6 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Bernice Unit O-2-10295 | Eagleville (Eagle Ford-2) | Devon Energy Production Co, L.P. | 6 | 1.55M | 763K | Nov 2012 – Jul 2026 |
Oil, barrels lease total
Last 12 months 56,046 · prior 12 38,610(+45%)
Gas, mcf lease total
Last 12 months 19,070 · prior 12 31,074(-39%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Plains Exploration & Prod. Co.Jan 2013 → Jun 2013
- 2Freeport-McMoran Oil & Gas LLCJul 2013 → Jun 2014
- 3Encana Oil & Gas(usa) Inc.Jul 2014 → Jan 2020
- 4Ovintiv USA Inc.Feb 2020 → Apr 2021
- 5Validus NRG Aquilas Assetco LLCMay 2021 → Aug 2022
- 6Devon Energy Production Co, L.P.Sep 2022 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 839964-98 | Drill | Encana Oil & Gas(usa) Inc. | Jul 3, 2018 | May 18, 2018 | Aug 5, 2018 | 10,650 |
| 839964-99 | Drill | Encana Oil & Gas(usa) Inc. | May 11, 2018 | May 18, 2018 | — | 10,650 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-2-10295 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 314 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| YeguaYEGUA - DISPOSAL | 766 | -452 |
| Queen City | 2,481 | -2,167 |
| Reklaw | 2,812 | -2,498 |
| Carrizo | 3,380 | -3,066 |
| WilcoxWILCOX - DISPOSAL | 5,111 | -4,797 |
| Austin ChalkAUSTIN CHALK - H2S | 10,030 | -9,716 |
| Eagle FordEAGLE FORD - H2S | 10,667 | -10,353 |
| EdwardsEDWARDS - H2S | — | — |
| FrioFRIO - DISPOSAL | — | — |
| SligoSLIGO - H2S | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 10,709 | 15,008 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 4,501 | 12.25 | 1,356 S |
| 5.5 | 15,081 | 8.5 | 2,266 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 | Feb 14, 2019 | Jan 17, 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 42-255-35945 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-255-35945 → 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 neighbors, subsea-aligned so they line up regardless of surface terrain.
Bernice Unit42-255-35940
0.0 KM · Encana Oil & Gas(usa) Inc. · Section with this well →
| Yegua | 766 | -452 |
| Queen City | 2,481 | -2,167 |
| Reklaw | 2,812 | -2,498 |
| Carrizo | 3,380 | -3,066 |
| Wilcox | 5,111 | -4,797 |
| Austin Chalk | 10,030 | -9,716 |
| Eagle Ford | 10,765 | -10,451 |
| Frio | — |
10 TOPS · FIRST 8
Bernice-Falls City AW A42-255-38211
0.3 KM · Devon Energy Production Co, L.P. · Section with this well →
| Yegua | 1,151 | -822 |
| Queen City | 2,571 | -2,242 |
| Reklaw | 2,883 | -2,554 |
| Carrizo | 3,490 | -3,161 |
| Wilcox | 4,252 | -3,923 |
| Austin Chalk | 10,038 | -9,709 |
| Eagle Ford | 10,492 | -10,163 |
| Sligo | — |
10 TOPS · FIRST 8
Bernice-Falls City AW B42-255-38212
0.3 KM · Devon Energy Production Co, L.P. · Section with this well →
| Yegua | 1,157 | -828 |
| Queen City | 2,577 | -2,248 |
| Reklaw | 2,890 | -2,561 |
| Carrizo | 3,498 | -3,169 |
| Wilcox | 4,257 | -3,928 |
| Austin Chalk | 10,045 | -9,716 |
| Eagle Ford | 10,502 | -10,173 |
| Sligo | — |
10 TOPS · FIRST 8
Bernice-Falls City AW C42-255-38213
0.3 KM · Devon Energy Production Co, L.P. · Section with this well →
| Yegua | 1,153 | -824 |
| Queen City | 2,573 | -2,244 |
| Reklaw | 2,884 | -2,555 |
| Carrizo | 3,493 | -3,164 |
| Wilcox | 4,253 | -3,924 |
| Austin Chalk | 10,033 | -9,704 |
| Eagle Ford | 10,477 | -10,148 |
| Edwards | — |
10 TOPS · FIRST 8
Bernice-Falls City AW D42-255-38215
0.3 KM · Devon Energy Production Co, L.P. · Section with this well →
| Yegua | 1,164 | -834 |
| Queen City | 2,585 | -2,255 |
| Reklaw | 2,897 | -2,567 |
| Carrizo | 3,504 | -3,174 |
| Wilcox | 4,264 | -3,934 |
| Austin Chalk | 10,037 | -9,707 |
| Eagle Ford | 10,487 | -10,157 |
| Sligo | — |
10 TOPS · FIRST 8
Alvin NK-Bernice A42-255-37466
1.8 KM · Validus NRG Aquilas Assetco LLC · Section with this well →
| Yegua | 1,136 | -853 |
| Queen City | 2,557 | -2,274 |
| Reklaw | 2,868 | -2,585 |
| Carrizo | 3,476 | -3,193 |
| Wilcox | 4,236 | -3,953 |
| Austin Chalk | 10,246 | -9,963 |
| Eagle Ford | 10,492 | -10,209 |
| Sligo | — |
10 TOPS · FIRST 8
Alvin NK Unit42-255-37462
1.8 KM · Validus NRG Aquilas Assetco LLC · Section with this well →
| Yegua | 1,139 | -856 |
| Queen City | 2,564 | -2,281 |
| Reklaw | 2,872 | -2,589 |
| Carrizo | 3,484 | -3,201 |
| Wilcox | 4,301 | -4,018 |
| Austin Chalk | 10,088 | -9,805 |
| Eagle Ford | 10,498 | -10,215 |
| Sligo | — |
10 TOPS · FIRST 8
Alvin NK Unit42-255-37459
1.8 KM · Validus NRG Aquilas Assetco LLC · Section with this well →
| Yegua | 1,154 | -807 |
| Queen City | 2,582 | -2,235 |
| Reklaw | 2,885 | -2,538 |
| Carrizo | 3,498 | -3,151 |
| Wilcox | 4,253 | -3,906 |
| Austin Chalk | 10,097 | -9,750 |
| Eagle Ford | 10,505 | -10,158 |
| Frio | — |
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/25535945, documented in the API reference.