WELL · 42-255-35280 · DISTRICT 2
Nichols a Unit #18H
Karnes County · Eagleville (Eagle Ford-2) field · Producing · Horizontal
Nichols A Unit #18H (API 42-255-35280) is a horizontal well in Karnes County operated by Devon Energy Production CO L.P., completed April 23, 2017 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued January 25, 2017, permitted to 12,550 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 3.92M barrels of oil and 9.72M mcf of gas since December 2012, last reporting in July 2026. The lease carries 19 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.
Oklahoma City, OK · P-5 Active, filed Dec 18, 2025 · 9,266 permits on file · (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.Jan 25, 2017 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 12,550
- total depth, ft
- 2
- permits on file
- Jan 25, 2017
- last permit issued
- Apr 23, 2017
- completed
- 3.92M
- cumulative oil, bbl
- 9.72M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Dec 2012 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Apr 23, 2017
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active
Surface location
28.909424, -97.882575
OpenStreetMap → · Google Maps →
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 19 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Nichols a Unit O-2-10477 | Eagleville (Eagle Ford-2) | Devon Energy Production Co, L.P. | 19 | 3.92M | 9.72M | Dec 2012 – Jul 2026 |
Oil, barrels lease total
Last 12 months 64,965 · prior 12 84,097(-23%)
Gas, mcf lease total
Last 12 months 178,584 · prior 12 236,657(-25%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Petrohawk Operating CompanyFeb 2013 → Jul 2013
- 2BHP Billiton Pet(txla OP) CoAug 2013 → Jun 2016
- 3Encana Oil & Gas(usa) Inc.Jul 2016 → 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 |
|---|---|---|---|---|---|---|
| 822184-98 | Drill | Encana Oil & Gas(usa) Inc. | Sep 16, 2019 | Jan 25, 2017 | Feb 7, 2017 | 12,550 |
| 822184-99 | Drill | Encana Oil & Gas(usa) Inc. | Jan 17, 2017 | Jan 25, 2017 | Feb 7, 2017 | 12,550 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-2-10477 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 374 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| YeguaYEGUA - DISPOSAL | 2,133 | -1,759 |
| Queen City | 4,259 | -3,885 |
| Reklaw | 4,585 | -4,211 |
| Carrizo | 5,127 | -4,753 |
| WilcoxWILCOX - DISPOSAL | 5,310 | -4,936 |
| Austin ChalkAUSTIN CHALK - H2S | 11,882 | -11,508 |
| Eagle FordEAGLE FORD - H2S | 12,048 | -11,674 |
| EdwardsEDWARDS - H2S | — | — |
| FrioFRIO - DISPOSAL | — | — |
| SligoSLIGO - H2S | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 12,529 | 15,501 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 3,412 | 12.25 | 915 S |
| 5.5 | 15,530 | 8.5 | 2,648 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 | Apr 8, 2020 | Jan 20, 2020 | Yes |
| 00 | Nov 9, 2017 | Aug 3, 2017 | 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 42-255-35280 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-255-35280 → 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.
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 |
| Frio | — |
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 Unit42-255-35708
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 Unit42-255-36123
0.1 KM · Encana Oil & Gas(usa) Inc. · Section with this well →
| Yegua | 2,001 | -1,631 |
| Queen City | 4,163 | -3,793 |
| Reklaw | 4,497 | -4,127 |
| Carrizo | 5,013 | -4,643 |
| Wilcox | 6,753 | -6,383 |
| Austin Chalk | 11,933 | -11,563 |
| Eagle Ford | 12,070 | -11,700 |
| Frio | — |
10 TOPS · FIRST 8
Nichols a Unit42-255-36118
0.1 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 |
| Frio | — |
10 TOPS · FIRST 8
Nichols a Unit42-255-36122
0.1 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 |
| Edwards | — |
10 TOPS · FIRST 8
Nichols a Unit42-255-36121
0.1 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 Unit42-255-35281
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 |
| 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/25535280, documented in the API reference.