WELL · 42-477-30795 · DISTRICT 3
Gillis Unit #1
Washington County · Giddings (Austin Chalk Gas) field · Horizontal · Sidetrack
Gillis Unit #1 (API 42-477-30795) is a plugged horizontal well in Washington County, plugged April 10, 2023, last operated by Southwest Resources Inc..
The RRC has issued 2 drilling permits (amended 3 times) between 1995 and 1997, permitted to 14,400 ft.
It was permitted by Shield Petroleum and has since transferred to Southwest Resources Inc. on the wellbore schedule.
Completion filings report one formation top, including Austin Chalk.
Operator of record
Permitted by Shield Petroleum; the EWA schedule now lists a different operator.
Brenham, TX · P-5 Y, filed Mar 4, 2026 · 3 permits on file · (979) 203-6530
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Southwest Resources Inc. |
| Production reports | Crawford Hughes Operating Co.through Aug 2017 |
| Latest permit | Shield PetroleumMay 16, 1997 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 14,400
- total depth, ft
- 5
- permits on file
- May 16, 1997
- last permit issued
- Jul 17, 1997
- completed
- 0
- cumulative oil, bbl
- 301K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Dec 1995 THROUGH Jul 2023
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Jul 17, 1997
- Shut in
- —
- Plugged
- Apr 10, 2023
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 2 leases this well is completed on; they carry 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Gillis Unit G-3-169959 | Giddings (Austin Chalk, Gas) | Southwest Resources, Inc. | 1 | 0 | 300K | Jul 1997 – Jul 2023 |
| Gillis Unit O-3-22989 | Giddings (Austin Chalk-3) | Shield Petroleum | 1 | 0 | 895 | Dec 1995 – Oct 1998 |
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.
- 1Shield PetroleumJul 1997 → Feb 2001
- 2Crawford Energy Operating CoMar 2001 → Aug 2008
- 3Crawford Hughes Operating Co.Sep 2008 → Aug 2017
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 462554-97 | Recompletion · sidetrack | Shield Petroleum | Aug 25, 1998 | May 16, 1997 | — | 14,150 |
| 462554-98 | Recompletion · sidetrack | Shield Petroleum | Dec 18, 1997 | May 16, 1997 | — | 14,400 |
| 462554-99 | Recompletion · sidetrack | Shield Petroleum | May 16, 1997 | May 16, 1997 | May 20, 1997 | 14,400 |
| 438491-98 | Drill | Union Pacific Resources Company | Mar 29, 1996 | Aug 7, 1995 | — | 14,200 |
| 438491-99 | Drill | Union Pacific Resources Company | Aug 3, 1995 | Aug 7, 1995 | Aug 25, 1995 | 14,200 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-3-169959 | — | — | — | — |
| — | — O-3-22989 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 198 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Austin Chalk | 13,460 | -13,262 |
| Austin Chalk | 13,500 | -13,302 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 13,000 | 15,260 | Perforated |
| 13,000 | 16,800 | Perforated |
| 13,461 | 14,919 | Perforated |
| 13,540 | 18,718 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 3,236 | 14.75 | 1,480 S |
| 7.625 | 13,461 | 9.875 | 605 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 9, 1998 | Aug 25, 1998 | Yes |
| 00 | Sep 29, 1998 | — | — |
| 00 | Aug 1, 1996 | Apr 1, 1996 | Yes |
| 00 | Jul 23, 1996 | — | — |
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 42-477-30795 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-477-30795 → 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/47730795, documented in the API reference.