WELL · 42-059-35768 · DISTRICT 7
Davis S. M. #40
Callahan County · Callahan County Regular field · Shut IN · Vertical
Davis S. M. #40 (API 42-059-35768) is a well in Callahan County operated by Merkaz Drilling LLC, completed July 23, 1987 and listed as shut in on the RRC schedule.
The RRC has issued one drilling permit, issued July 21, 1987, permitted to 1,000 ft.
It was permitted by Tidwell Brothers and has since transferred to Merkaz Drilling LLC on the wellbore schedule.
Completion filings report one formation top, including Cook Sand.
Its lease has reported 27.2K barrels of oil and 14 mcf of gas since January 1993, last reporting in July 2026. The lease carries 67 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Tidwell Brothers; the EWA schedule now lists a different operator.
Dallas, TX · P-5 Y, filed Jun 4, 2026 · 39 permits on file · (214) 394-8645
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Merkaz Drilling LLC |
| Production reports | Merkaz Drilling, LLCthrough Mar 2026 |
| Latest permit | Tidwell BrothersJul 21, 1987 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 1,000
- total depth, ft
- 1
- permits on file
- Jul 21, 1987
- last permit issued
- Jul 23, 1987
- completed
- 27.2K
- cumulative oil, bbl
- 14
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jul 23, 1987
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active
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 67 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Davis, S. M. O-8-6429 | Callahan County Regular | Merkaz Drilling, LLC | 67 | 27.2K | 14 | Jan 1993 – Jul 2026 |
Oil, barrels lease total
Last 12 months 1,088 · prior 12 2,261(-52%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Momentum Operating Co., Inc.Jan 1993 → Jul 1994
- 2Sequoia Fossil Fuels, Inc.Aug 1994 → Jul 2003
- 3IpactAug 2003 → Apr 2008
- 4Ziegler-Peru, Inc.Oct 2011 → Aug 2012
- 5Merkaz Drilling, LLCOct 2012 → Mar 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 333004-99 | Drill | Tidwell Brothers | Jul 16, 1987 | Jul 21, 1987 | — | 1,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-8-6429 | — | — | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 453 | 464 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 4.5 | 502 | 6.75 | 80 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 17, 1987 | Aug 11, 1987 | Yes |
| 00 | Sep 15, 1987 | — | — |
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 42-059-35768 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-059-35768 → 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/05935768, documented in the API reference.