WELL · 42-329-35935 · DISTRICT 8
CASSELMAN40 #4
Midland County · Spraberry (Trend Area) field · Shut IN · Vertical
Casselman40 #4 (API 42-329-35935) is a well in Midland County operated by Apache Corporation, completed July 24, 2008 and listed as shut in on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued May 5, 2008, permitted to 10,900 ft.
It was permitted by Henry Resources LLC and has since transferred to Apache Corporation on the wellbore schedule.
Completion filings report 4 formation tops, including T. Clearfork, T. Spraberry, T. Dean, T. Wolfcamp.
Its lease has reported 3.1M barrels of oil and 10.4M mcf of gas since July 2008, last reporting in July 2026. The lease carries 31 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Henry Resources LLC; the EWA schedule now lists a different operator.
Houston, TX · P-5 Y, filed Oct 4, 2025 · 9,754 permits on file · (713) 296-6400
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Apache Corporation |
| Production reports | Apache Corporationthrough Apr 2026 |
| Latest permit | Henry Petroleum LPMay 5, 2008 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 10,900
- total depth, ft
- 2
- permits on file
- May 5, 2008
- last permit issued
- Jul 24, 2008
- completed
- 3.1M
- cumulative oil, bbl
- 10.4M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jul 2008 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jul 24, 2008
- 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 31 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| CASSELMAN40 O-10-38873 | Spraberry (Trend Area) | Apache Corporation | 31 | 3.1M | 10.4M | Jul 2008 – Jul 2026 |
Gas, mcf lease total
Last 12 months 524,751 · prior 12 632,516(-17%)
Oil, barrels lease total
Last 12 months 60,567 · prior 12 62,040(-2%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Henry Resources LLCJul 2008 → Oct 2014
- 2Callon Petroleum Operating CoNov 2014 → Jul 2024
- 3Apache CorporationAug 2024 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 660231-98 | Drill | Henry Resources LLC | Jun 13, 2008 | May 5, 2008 | Jun 3, 2008 | 10,900 |
| 660231-99 | Drill | Henry Petroleum LP | Apr 22, 2008 | May 5, 2008 | Jun 2, 2008 | 10,900 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-38873 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,872 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| T. Clearfork | 7,190 | -4,318 |
| T. Spraberry | 8,240 | -5,368 |
| T. Dean | 9,295 | -6,423 |
| T. Wolfcamp | 9,375 | -6,503 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,560 | 10,680 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 508 | 12.25 | 615 S |
| 5.5 | 10,822 | 8.75 | 860 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 | Dec 5, 2008 | Aug 22, 2008 | Yes |
| 00 | Nov 18, 2008 | — | — |
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 42-329-35935 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-329-35935 → 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/32935935, documented in the API reference.