WELL · 42-287-31156 · DISTRICT 3
Shelly Branch Unit #1
Lee County · Giddings (Austin Chalk Gas) field · Vertical
Shelly Branch Unit #1 (API 42-287-31156) is a plugged well in Lee County, plugged May 6, 1994, last operated by Exxon Corp..
The RRC has issued one drilling permit, issued January 28, 1982, permitted to 9,600 ft.
It was permitted by Superior Oil Company, The and has since transferred to Exxon Corp. on the wellbore schedule.
Completion filings report 3 formation tops, including Pecan Gap, Austin Chalk, Eagle Ford.
Its 2 leases have reported 292K barrels of oil and 2.87M mcf of gas since January 1993, last reporting in July 2026. The leases carry 9 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Superior Oil Company, The; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- See remarks (S)
- P-5 last filed
- Mar 15, 1999
- Permits on file
- 19,549
- Phone
- (713) 431-1125
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Exxon Corp. |
| Production reports | Senora Resources, Inc.through Dec 2023 |
| Latest permit | Superior Oil Company, TheJan 28, 1982 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 9,600
- total depth, ft
- 1
- permits on file
- Jan 28, 1982
- last permit issued
- Mar 10, 1982
- completed
- 292K
- cumulative oil, bbl
- 2.87M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Mar 10, 1982
- Shut in
- —
- Plugged
- May 6, 1994
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 9 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Branch-Smith Unit No. 1 O-3-15895 | Giddings (Austin Chalk-3) | Senora Resources, Inc. | 8 | 292K | 2.84M | Jan 1993 – Jul 2026 |
| Shelly Branch Unit G-3-98992 | Giddings (Austin Chalk, Gas) | Exxon Corp. | 1 | 0 | 24.8K | Jan 1993 – Mar 1994 |
Gas, mcf lease total
Last 12 months 0 · prior 12 0
Oil, barrels lease total
Last 12 months 0 · prior 12 0
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Exxon Corp.Jan 1993 → Mar 2000
- 2Exxon Mobil CorporationApr 2000 → Dec 2010
- 3Senora Resources, Inc.Jan 2011 → Dec 2023
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 149128-99 | Drill | Superior Oil Company, The | Jan 28, 1982 | Jan 28, 1982 | Feb 2, 1982 | 9,600 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-3-98992 | — | — | — | — |
| — | — O-3-15895 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 304 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Pecan Gap | 7,760 | -7,456 |
| Austin Chalk | 8,388 | -8,084 |
| Eagle FordEAGLEFORD SHALE | 9,088 | -8,784 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,819 | 9,159 | Perforated |
| 9,159 | 8,819 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 4,000 | 12.25 | 2,100 S |
| 2.875 | 8,690 | — | — |
| 5.5 | 9,245 | 8.75 | 725 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, 1993 | Sep 7, 1993 | — |
| 00 | Sep 21, 1993 | — | — |
| 00 | Jan 12, 1984 | Apr 6, 1982 | — |
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 42-287-31156 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-287-31156 → 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/28731156, documented in the API reference.