WELL · 42-499-31998 · DISTRICT 6
Shamburger J.G. #4A
Wood County · Manziel (Sub-Clarksville) field · Producing · Vertical
Shamburger J.G. #4A (API 42-499-31998) is a well in Wood County operated by Southwest Operating Inc.-Tyler, completed July 14, 2003 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued May 22, 2003, permitted to 4,500 ft.
It was permitted by Noble & Cantrell Expl. CO., Inc. and has since transferred to Southwest Operating Inc.-Tyler on the wellbore schedule.
Completion filings report 3 formation tops, including Nacotoch, Pecan Gap, Sub-Clarksville.
Its lease has reported 107K barrels of oil and 26 mcf of gas since January 1993, last reporting in July 2026. The lease carries 2 wells, so these are lease totals, not this well alone.
Operator of record
Southwest Operating Inc.-Tyler
Permitted by Noble & Cantrell Expl. Co., Inc.; the EWA schedule now lists a different operator.
Tyler, TX · P-5 Y, filed Feb 4, 2026 · 63 permits on file · (903) 530-1563
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Southwest Operating Inc.-Tyler |
| Production reports | Southwest Operating, Inc.-Tylerthrough Apr 2026 |
| Latest permit | Noble & Cantrell Expl. Co., Inc.May 22, 2003 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 4,500
- total depth, ft
- 1
- permits on file
- May 22, 2003
- last permit issued
- Jul 14, 2003
- completed
- 107K
- cumulative oil, bbl
- 26
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jul 14, 2003
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: X
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 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Shamburger, J.G. O-6-13103 | Manziel (Sub-Clarksville) | Southwest Operating, Inc.-Tyler | 2 | 107K | 26 | Jan 1993 – Jul 2026 |
Oil, barrels lease total
Last 12 months 2,006 · prior 12 2,490(-19%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Ncec, Inc.Jan 1993 → May 1994
- 2Noble & Cantrell Expl. Co., Inc.Jun 1994 → Jul 2006
- 35-N EnergyAug 2006 → Aug 2006
- 4Shiloh Operating LLCSep 2006 → Sep 2007
- 5Southwest Operating, Inc.-TylerOct 2007 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 532019-99 | Drill | Noble & Cantrell Expl. Co., Inc. | May 16, 2003 | May 22, 2003 | Jun 25, 2003 | 4,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-6-13103 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 465 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Nacotoch | 1,700 | -1,235 |
| Pecan Gap | 2,566 | -2,101 |
| Sub-Clarksville | 4,060 | -3,595 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,061 | 4,082 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 821 | 11 | 257 S |
| 5.5 | 4,470 | 7.875 | 270 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 | Sep 25, 2003 | Aug 13, 2003 | Yes |
| 00 | Sep 18, 2003 | — | — |
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 42-499-31998 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-499-31998 → 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/49931998, documented in the API reference.