WELL · 42-255-36123 · DISTRICT 2
Nichols a Unit #12H
Karnes County · Eagleville (Eagle Ford-2) field · Not Eligible for Allowable · Horizontal
Nichols A Unit #12H (API 42-255-36123) is a horizontal well in Karnes County operated by Devon Energy Production CO L.P., completed February 15, 2019 and listed as not eligible for allowable on the RRC schedule.
The RRC has issued one drilling permit, issued August 29, 2018, permitted to 12,350 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.
No lease production has been reported under this well’s leases.
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 | none |
| Latest permit | Encana Oil & Gas(usa) Inc.Aug 29, 2018 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 12,350
- total depth, ft
- 1
- permits on file
- Aug 29, 2018
- last permit issued
- Feb 15, 2019
- completed
- 0
- cumulative oil, bbl
- 0
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Feb 2019 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Feb 15, 2019
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active (A)
Surface location
28.909425, -97.883294
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; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Nichols a Unit G-2-288076 | Eagleville (Eagle Ford-2) | Devon Energy Production Co, L.P. | 1 | 0 | 0 | Feb 2019 – Jul 2026 |
No volumes reported on these leases in the last three years.
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 844092-99 | Drill | Encana Oil & Gas(usa) Inc. | Aug 28, 2018 | Aug 29, 2018 | Nov 10, 2018 | 12,350 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-2-288076 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 370 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| YeguaYEGUA - DISPOSAL | 2,001 | -1,631 |
| Queen City | 4,163 | -3,793 |
| Reklaw | 4,497 | -4,127 |
| Carrizo | 5,013 | -4,643 |
| WilcoxWILCOX - DISPOSAL | 6,753 | -6,383 |
| Austin ChalkAUSTIN CHALK - H2S | 11,933 | -11,563 |
| Eagle FordEAGLE FORD - H2S | 12,070 | -11,700 |
| EdwardsEDWARDS - H2S | — | — |
| FrioFRIO - DISPOSAL | — | — |
| SligoSLIGO - H2S | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 12,209 | 16,600 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 4,663 | 12.25 | 1,382 S |
| 5.5 | 16,652 | 8.5 | 2,456 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 16, 2020 | Oct 6, 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 42-255-36123 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-255-36123 → 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.
Nichols a Unit42-255-36118
0.0 KM · Encana Oil & Gas(usa) Inc. · Section with this well →
| Yegua | 2,000 | -1,630 |
| Queen City | 4,163 | -3,793 |
| Reklaw | 4,496 | -4,126 |
| Carrizo | 5,011 | -4,641 |
| Wilcox | 6,748 | -6,378 |
| Austin Chalk | 11,930 | -11,560 |
| Eagle Ford | 12,066 | -11,696 |
| Edwards | — |
10 TOPS · FIRST 8
Nichols a Unit42-255-36122
0.0 KM · Encana Oil & Gas(usa) Inc. · Section with this well →
| Yegua | 4,189 | -3,819 |
| Reklaw | 4,520 | -4,150 |
| Queen City | 4,551 | -4,181 |
| Carrizo | 5,039 | -4,669 |
| Wilcox | 6,794 | -6,424 |
| Austin Chalk | 11,950 | -11,580 |
| Eagle Ford | 12,038 | -11,668 |
| Sligo | — |
10 TOPS · FIRST 8
Nichols a Unit42-255-36121
0.0 KM · Encana Oil & Gas(usa) Inc. · Section with this well →
| Yegua | 2,017 | -1,647 |
| Queen City | 4,188 | -3,818 |
| Reklaw | 4,520 | -4,150 |
| Carrizo | 5,038 | -4,668 |
| Wilcox | 6,793 | -6,423 |
| Austin Chalk | 11,901 | -11,531 |
| Eagle Ford | 12,034 | -11,664 |
| Sligo | — |
10 TOPS · FIRST 8
Nichols a Unit42-255-35708
0.0 KM · Encana Oil & Gas(usa) Inc. · Section with this well →
| Yegua | 2,007 | -1,638 |
| Queen City | 4,158 | -3,789 |
| Reklaw | 4,489 | -4,120 |
| Carrizo | 5,000 | -4,631 |
| Wilcox | 5,000 | -4,631 |
| Austin Chalk | 11,885 | -11,516 |
| Eagle Ford | 12,067 | -11,698 |
| Sligo | — |
10 TOPS · FIRST 8
Nichols a Unit42-255-35709
0.0 KM · Encana Oil & Gas(usa) Inc. · Section with this well →
| Yegua | 2,010 | -1,641 |
| Queen City | 4,164 | -3,795 |
| Reklaw | 4,496 | -4,127 |
| Carrizo | 5,007 | -4,638 |
| Wilcox | 5,007 | -4,638 |
| Austin Chalk | 11,871 | -11,502 |
| Eagle Ford | 12,027 | -11,658 |
| Sligo | — |
10 TOPS · FIRST 8
Nichols a Unit42-255-35710
0.0 KM · Encana Oil & Gas(usa) Inc. · Section with this well →
| Yegua | 2,010 | -1,641 |
| Queen City | 4,166 | -3,797 |
| Reklaw | 4,498 | -4,129 |
| Carrizo | 5,010 | -4,641 |
| Wilcox | 5,010 | -4,641 |
| Austin Chalk | 11,897 | -11,528 |
| Eagle Ford | 12,079 | -11,710 |
| Edwards | — |
10 TOPS · FIRST 8
Nichols a Unit42-255-35280
0.1 KM · Encana Oil & Gas(usa) Inc. · Section with this well →
| Yegua | 2,133 | -1,759 |
| Queen City | 4,259 | -3,885 |
| Reklaw | 4,585 | -4,211 |
| Carrizo | 5,127 | -4,753 |
| Wilcox | 5,310 | -4,936 |
| Austin Chalk | 11,882 | -11,508 |
| Eagle Ford | 12,048 | -11,674 |
| Edwards | — |
10 TOPS · FIRST 8
Nichols a Unit42-255-35281
0.2 KM · Encana Oil & Gas(usa) Inc. · Section with this well →
| Yegua | 2,151 | -1,766 |
| Queen City | 4,273 | -3,888 |
| Reklaw | 4,596 | -4,211 |
| Carrizo | 5,140 | -4,755 |
| Wilcox | 5,328 | -4,943 |
| Austin Chalk | 11,901 | -11,516 |
| Eagle Ford | 12,063 | -11,678 |
| Sligo | — |
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/25536123, documented in the API reference.