TEXAS · WELLS · DE WITT COUNTY · ST. CLAIR UNIT A LEASE · API 42-123-32856 · DISTRICT 02
St. Clair Unit A #1
De Witt County · Eagleville (Eagle Ford-2) field · Shut In · Horizontal
ST. Clair Unit A #1 (API 42-123-32856) is a horizontal well in De Witt County operated by Ensign Natural Resources II LLC, completed June 21, 2014 and listed as shut in on the RRC schedule, shut in December 1, 2024.
The RRC has issued one drilling permit (amended once), issued August 18, 2012, permitted to 12,329 ft.
It was permitted by Burlington Resources O & G CO LP and has since transferred to Ensign Natural Resources II LLC on the wellbore schedule.
Completion filings report 3 formation tops, including Pecan Gap, Austin Chalk, Eagle Ford.
Its lease has reported 730K barrels of oil and 1.65M mcf of gas since March 2013, last reporting volume in April 2026. The lease carries 3 wells, so these are lease totals, not this well alone.
Operator of record
Ensign Natural Resources II LLC
Permitted by Burlington Resources O & G Co LP; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- Active (A)
- P-5 last filed
- Jun 29, 2026
- Permits on file
- 13
- Phone
- (346) 809-4062
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Ensign Natural Resources II LLC |
| Production reports | Burlington Resources O & G Co LPthrough Apr 2026 |
| Latest permit | Burlington Resources O & G Co LPAug 18, 2012 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 12,329
- total depth, ft
- 2
- permits on file
- Aug 18, 2012
- last permit issued
- Jun 21, 2014
- completed
- 730K
- cumulative oil, bbl
- 1.65M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jul 2013 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jun 21, 2014
- Shut in
- Dec 1, 2024
- 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; they carry 3 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| St. Clair Unit A O-2-10568 | Eagleville (Eagle Ford-2) | Burlington Resources O & G Co LP | 3 | 730K | 1.65M | Mar 2013 – Apr 2026 |
Oil, barrels lease total
Last 12 months 4,623 · prior 12 5,654(-18%)
Gas, mcf lease total
Last 12 months 16,185 · prior 12 18,524(-13%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Burlington Resources O & G Co LPJul 2013 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 745689-98 | Drill | Burlington Resources O & G Co LP | Dec 17, 2012 | Aug 18, 2012 | Jun 7, 2013 | 17,000 |
| 745689-99 | Drill | Burlington Resources O & G Co LP | Aug 1, 2012 | Aug 18, 2012 | Dec 23, 2013 | 17,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jun 21, 2014 | St. Clair Unit A O-2-10568 | Eagleville (Eagle Ford-2) | Ensign Natural Resources II LLC | Shut In · shut in Dec 1, 2024 | 12,329 |
Formation tops
As filed on W-2/G-1. Subsea from 285 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Pecan Gap | 11,109 | -10,824 |
| Austin Chalk | 11,348 | -11,063 |
| Eagle Ford | 11,912 | -11,627 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 12,286 | 16,973 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 3,119 | 12.25 | 1,005 S |
| 5.5 | 17,208 | 8.75 | 1,740 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. The record date is the RRC's own date on the record, not the day the report was filed: 462,034 of the state's filings carry 1984-01-12. About these reports →
| Suffix | RRC record date | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Sep 9, 2014 | Jul 1, 2014 | — |
| 00 | Oct 8, 2013 | Aug 27, 2013 | — |
| 00 | Sep 4, 2013 | Jul 18, 2013 | Yes |
Well logs
1 log loaded from the RRC's log index, the latest received Mar 21, 2016. Resistivity. These are the logs loaded into Petrora from the Railroad Commission's inventories, not necessarily every log run on the well. The RRC holds the files; each opens from its log search for the well. The kind is the RRC's description of the log; the interval is the one filed for it.
Open the RRC's log search for this well ↗| Logas described | Files | Intervalft, as filed | Datereceived | SizeMB |
|---|---|---|---|---|
| RESISTIVITYSpans Pecan Gap, Austin Chalk, Eagle Ford | TIFF | 3,135 to 17,227 | Mar 21, 2016run Mar 23, 2013 | 1.77 |
"Spans" is by this well's own filed formation tops: a formation runs from its top to the next deeper top filed, and the deepest runs to the bottom of the log. Depths are measured along the wellbore, so on a horizontal the lateral counts in the formation it was landed in.
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 42-123-32856 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-123-32856 → scanned completion filings
The logs loaded for this well are under Well logs, with the RRC's log search for it.
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/12332856, documented in the API reference.