WELL · 42-499-31235 · DISTRICT 6
Caldwell D. K. Estate #2
Wood County · Neuhoff (Woodbine) field · Vertical
Caldwell D. K. Estate #2 (API 42-499-31235) is a well in Wood County operated by Wisenbaker Production Company, completed May 2, 1984.
The RRC has issued 2 drilling permits between 1984 and 2014, permitted to 10,000 ft.
It was permitted by Energy Production Corporation and has since transferred to Wisenbaker Production Company on the wellbore schedule.
Completion filings report 7 formation tops, including Pecan Gap, Austin Chalk, Sub-Clarksville, Wb Marker.
Its 3 leases have reported 9.91M barrels of oil and 9.83M mcf of gas since January 1993, last reporting in July 2026. The leases carry 21 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Energy Production Corporation; the EWA schedule now lists a different operator.
Tyler, TX · P-5 Y, filed Sep 9, 2011 · 145 permits on file
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Wisenbaker Production Company |
| Production reports | Montare Operating, Ltd.through Apr 2026 |
| Latest permit | Energy Production CorporationJul 8, 2014 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 10,000
- total depth, ft
- 2
- permits on file
- Jul 8, 2014
- last permit issued
- May 2, 1984
- completed
- 9.91M
- cumulative oil, bbl
- 9.83M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- May 2, 1984
- Shut in
- —
- Plugged
- —
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 3 leases this well is completed on; they carry 21 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Neuhoff (Buda-Woodbine) Unit O-6-12179 | Neuhoff (Buda-Woodbine) | Montare Operating, Ltd. | 20 | 9.91M | 9.83M | Jan 1993 – Jul 2026 |
| Caldwell, D. K. Estate O-6-15460 | Neuhoff (Clarksville) | Montare Operating, Ltd. | 1 | 0 | 0 | Jun 2014 – Jul 2026 |
| — O-6-12193 | — | — | 0 | 0 | 0 | — |
Oil, barrels lease total
Last 12 months 52,240 · prior 12 43,737(+19%)
Gas, mcf lease total
Last 12 months 303,497 · prior 12 65,607(+363%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Energy Production CorporationJan 1993 → Oct 2017
- 2Blackwell Exp & Development, LLCNov 2017 → Nov 2023
- 3Montare Operating, Ltd.Dec 2023 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 788902-99 | Recompletion | Energy Production Corporation | Jun 6, 2014 | Jul 8, 2014 | Jun 9, 2014 | 9,991 |
| 227269-99 | Drill | Wisenbaker Prod. Co. | May 4, 1984 | Jan 25, 1984 | Feb 2, 1984 | 10,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-6-12179 | — | — | — | — |
| — | — O-6-12193 | — | — | — | — |
| — | — O-6-15460 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 373 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Pecan Gap | 8,229 | -7,856 |
| Austin Chalk | 8,726 | -8,353 |
| Sub-Clarksville | 9,182 | -8,809 |
| Sub-Clarksville | 9,184 | -8,811 |
| WB Marker | 9,558 | -9,185 |
| Wm Marker | 9,558 | -9,185 |
| WoodbineWOODBINE MARKER | 9,562 | -9,189 |
| Woodbine | 9,628 | -9,255 |
| Buda | 9,770 | -9,397 |
| Buda | 9,772 | -9,399 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 9,260 | 9,276 | Perforated |
| 9,670 | 9,734 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 26 | 95 | 36 | 530 sx |
| 20 | 1,100 | 24 | 1,000 sx |
| 9.625 | 8,058 | 12.25 | 500 sx |
| 5.5 | 9,991 | 8.75 | 900 sx |
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 | Dec 29, 2015 | Nov 24, 2015 | — |
| 00 | Feb 7, 1989 | Jan 5, 1989 | — |
| 00 | Jan 25, 1989 | — | — |
| 00 | Jul 17, 1987 | — | — |
| 00 | Jan 20, 1986 | Nov 27, 1985 | Yes |
| 00 | Dec 24, 1985 | — | — |
| 00 | Aug 23, 1984 | May 17, 1984 | Yes |
| 00 | Jun 21, 1984 | May 17, 1984 | — |
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 42-499-31235 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-499-31235 → 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/49931235, documented in the API reference.