WELL · 42-055-34845 · DISTRICT 1
Smith Heirs #4H
Caldwell County · Horizontal
Smith Heirs #4H (API 42-055-34845) is a permitted horizontal well in Caldwell County filed by Cavalier Oil & Gas, Inc.; no completion report is on file yet.
The RRC has issued 2 drilling permits (amended twice) between 2007 and 2008, permitted to 3,600 ft.
Completion filings report one formation top, including T/Edwards.
Its 2 leases have reported 149K barrels of oil since May 2007, last reporting in July 2026. The leases carry 17 wells, so these are lease totals, not this well alone.
Operator of record
Buchanan Dam, TX · P-5 Y, filed Aug 4, 2025 · 91 permits on file · (512) 497-7248
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | none |
| Production reports | Costa Energy, LLCthrough Jun 2020 |
| Latest permit | Cavalier Oil & Gas, Inc.Nov 4, 2008 |
- 3,600
- total depth, ft
- 4
- permits on file
- Nov 4, 2008
- last permit issued
- —
- completed
- 149K
- cumulative oil, bbl
- 0
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · May 2007 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- —
- 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 2 leases this well is completed on; they carry 17 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Smith Heirs O-1-14820 | Salt Flat (Edwards) | Texian Operating Company, LLC | 10 | 149K | 0 | May 2007 – Jul 2026 |
| Smith Heirs O-1-20737 | Salt Flat (Edwards) | North South Oil, LLC | 7 | 0 | 0 | Sep 2022 – Jul 2026 |
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.
- 1Cavalier Oil & Gas, Inc.Sep 2007 → Feb 2009
- 2North South Oil, LLCMar 2009 → Jul 2011
- 3Eagle Energy Acquisitions LPAug 2011 → Aug 2014
- 4Eagle Hydrocarbons (Texas) Inc.Sep 2014 → Mar 2015
- 5Eagle Hydrocarbons Inc.Apr 2015 → Jun 2015
- 6Costa Energy, LLCJun 2020 → Jun 2020
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 672021-99 | Recompletion | Cavalier Oil & Gas, Inc. | Sep 26, 2008 | Nov 4, 2008 | — | 3,000 |
| 632118-97 | Drill | Cavalier Oil & Gas, Inc. | Jul 27, 2007 | Jan 24, 2007 | Jul 9, 2007 | 3,000 |
| 632118-98 | Drill | Cavalier Oil & Gas, Inc. | Feb 23, 2007 | Jan 24, 2007 | — | 3,000 |
| 632118-99 | Drill | Cavalier Oil & Gas, Inc. | Jan 18, 2007 | Jan 24, 2007 | Feb 25, 2007 | 3,600 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-1-14820 | — | — | — | — |
| — | — O-1-20737 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 371 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| T/Edwards | 2,700 | -2,329 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 2,700 | 2,786 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 301 | 12.25 | 176 S |
| 5.5 | 2,695 | 7.875 | 391 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 18, 2022 | Oct 18, 2007 | Yes |
| 00 | Nov 7, 2007 | Oct 18, 2007 | Yes |
| 00 | Oct 26, 2007 | — | — |
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 42-055-34845 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-055-34845 → 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/05534845, documented in the API reference.