TEXAS · WELLS · MIDLAND COUNTY · CASSELMAN8 LEASE · API 42-329-35879 · DISTRICT 7B
CASSELMAN8 #4
Midland County · Spraberry (Trend Area) field · Shut In · Vertical
Casselman8 #4 (API 42-329-35879) is a well in Midland County operated by Apache Corporation, completed January 29, 2014 and listed as shut in on the RRC schedule, shut in April 1, 2017.
The RRC has issued 2 drilling permits between 2008 and 2010, permitted to 10,790 ft.
It was permitted by Henry Resources LLC and has since transferred to Apache Corporation on the wellbore schedule.
Completion filings report 3 formation tops, including T. Spraberry, T. Dean, T. Wolfcamp.
Its lease has reported 2.72M barrels of oil and 9.66M mcf of gas since May 2008, last reporting volume in April 2026. The lease carries 29 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.
- Based in
- Houston, TX
- P-5 status
- Active (A)
- P-5 last filed
- Dec 3, 2025
- Permits on file
- 9,757
- Phone
- (713) 954-5500
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Apache Corporation |
| Production reports | Apache Corporationthrough Apr 2026 |
| Latest permit | Henry Resources LLCJun 14, 2010 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 10,790
- total depth, ft
- 2
- permits on file
- Jun 14, 2010
- last permit issued
- Jan 29, 2014
- completed
- 2.72M
- cumulative oil, bbl
- 9.66M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · May 2008 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jan 29, 2014
- Shut in
- Apr 1, 2017
- Plugged
- —
Operator's P-5 on the schedule: Active (A)
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 29 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| CASSELMAN8 O-10-38807 | Spraberry (Trend Area) | Apache Corporation | 29 | 2.72M | 9.66M | May 2008 – Apr 2026 |
Gas, mcf lease total
Last 12 months 575,464 · prior 12 570,032(+1%)
Oil, barrels lease total
Last 12 months 34,467 · prior 12 45,630(-24%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Henry Resources LLCMay 2008 → Oct 2014
- 2Callon Petroleum Operating CoNov 2014 → Jul 2024
- 3Apache CorporationAug 2024 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 697299-99 | Recompletion | Henry Resources LLC | Jun 8, 2010 | Jun 14, 2010 | — | 10,790 |
| 655506-99 | Drill | Henry Petroleum LP | Feb 18, 2008 | Feb 25, 2008 | Mar 6, 2008 | 11,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jan 29, 2014 | CASSELMAN8 O-10-38807 | Spraberry (Trend Area) | Apache Corporation | Shut In · shut in Apr 1, 2017 | 10,790 |
Formation tops
As filed on W-2/G-1. Subsea from 2,882 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| T. Spraberry | 8,175 | -5,293 |
| T. Dean | 9,300 | -6,418 |
| T. Wolfcamp | 9,350 | -6,468 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,236 | 10,485 | Perforated |
| 8,264 | 10,710 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 418 | 17.5 | 430 S |
| 5.5 | 10,790 | 8.75 | 780 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. The record date is the RRC's own date on the record, not the day the report was filed: 462,034 of the state's filings carry 1984-01-12. About these reports →
| Suffix | RRC record date | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Aug 18, 2014 | Apr 24, 2014 | — |
| 00 | Dec 3, 2008 | Jun 2, 2008 | Yes |
| 00 | Nov 10, 2008 | — | — |
Well logs
1 log loaded from the RRC's log index, the latest received Apr 6, 2011. Neutron. These are the logs loaded into Petrora from the Railroad Commission's inventories, not necessarily every log run on the well. The RRC holds the files; each opens from its log search for the well. The kind is the RRC's description of the log; the interval is the one filed for it.
Open the RRC's log search for this well ↗| Logas described | Files | Intervalft, as filed | Datereceived | SizeMB |
|---|---|---|---|---|
| NEUTRON POROSITYSpans T. Spraberry, T. Dean, T. Wolfcamp | TIFF | 4,000 to 10,723 | Apr 6, 2011run Mar 28, 2008 | 4.14 |
"Spans" is by this well's own filed formation tops: a formation runs from its top to the next deeper top filed, and the deepest runs to the bottom of the log. Depths are measured along the wellbore, so on a horizontal the lateral counts in the formation it was landed in.
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 42-329-35879 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-329-35879 → scanned completion filings
The logs loaded for this well are under Well logs, with the RRC's log search for it.
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/32935879, documented in the API reference.