WELL · 42-177-31924 · DISTRICT 1
Nelson-Chenault Unit #1
Gonzales County · Peach Creek (Austin Chalk) field · Horizontal
Nelson-Chenault Unit #1 (API 42-177-31924) is a plugged horizontal well in Gonzales County, plugged December 13, 1995, last operated by Driscoll S.W.D. Inc..
The RRC has issued one drilling permit, issued May 31, 1991, permitted to 16,700 ft.
It was permitted by Union Pacific Resources Company and has since transferred to Driscoll S.W.D. Inc. on the wellbore schedule.
Completion filings report 5 formation tops, including Midway, Navarro, Olmos, Anacacho.
Its lease has reported 39.3K barrels of oil and 41.9K mcf of gas since January 1993, last reporting in August 2003.
Operator of record
Permitted by Union Pacific Resources Company; the EWA schedule now lists a different operator.
San Antonio, TX · P-5 Y, filed Nov 4, 2025
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Driscoll S.W.D. Inc. |
| Production reports | Southwest Oil & Land, Inc.through Oct 1995 |
| Latest permit | Union Pacific Resources CompanyMay 31, 1991 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 16,700
- total depth, ft
- 1
- permits on file
- May 31, 1991
- last permit issued
- Aug 20, 1991
- completed
- 39.3K
- cumulative oil, bbl
- 41.9K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Aug 2003
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Aug 20, 1991
- Shut in
- —
- Plugged
- Dec 13, 1995
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; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Nelson-Chenault Unit O-1-13262 | Peach Creek (Austin Chalk) | Driscoll S.W.D. Inc. | 1 | 39.3K | 41.9K | Jan 1993 – Aug 2003 |
No volumes reported on these leases in the last three years.
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Union Pacific Resources CompanyJan 1993 → Mar 1993
- 2Torch Operating CompanyApr 1993 → Nov 1994
- 3Southwest Oil & Land, Inc.Dec 1994 → Oct 1995
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 388517-99 | Drill | Union Pacific Resources Company | May 31, 1991 | May 31, 1991 | Jun 11, 1991 | 16,700 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-1-13262 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 356 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Midway | 4,417 | -4,061 |
| Navarro | 5,172 | -4,816 |
| Olmos | 5,817 | -5,461 |
| Anacacho | 6,580 | -6,224 |
| Austin Chalk | 6,734 | -6,378 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,154 | 10,607 | Perforated |
| 7,154 | 11,662 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 2,621 | 14.75 | 1,100 S |
| 7.625 | 7,154 | 9.875 | 300 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 | Oct 21, 1991 | Sep 19, 1991 | Yes |
| 00 | Oct 18, 1991 | — | — |
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 42-177-31924 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-177-31924 → 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.
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/17731924, documented in the API reference.