WELL · 42-335-33286 · DISTRICT 8
Ison H. G. #1
Mitchell County · Enterprise (Strawn) field · Vertical
Ison H. G. #1 (API 42-335-33286) is a well in Mitchell County operated by Mcdonnold Operating Inc., completed March 17, 1987.
The RRC has issued one drilling permit, issued December 12, 1986, permitted to 8,000 ft.
It was permitted by Texaco Inc. and has since transferred to Mcdonnold Operating Inc. on the wellbore schedule.
Completion filings report 5 formation tops, including Vale Shale, Wolfcamp, Strawn, Mississippian.
Its 2 leases have reported 56.8K barrels of oil and 1.8K mcf of gas since January 1993, last reporting in July 2026. The leases carry 2 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Texaco Inc.; the EWA schedule now lists a different operator.
Midland, TX · P-5 Y, filed Feb 4, 2026 · 30 permits on file · (432) 553-5396
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | McDonnold Operating Inc. |
| Production reports | McDonnold Operating, Inc.through Mar 2026 |
| Latest permit | Texaco Inc.Dec 12, 1986 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 8,000
- total depth, ft
- 1
- permits on file
- Dec 12, 1986
- last permit issued
- Mar 17, 1987
- completed
- 56.8K
- cumulative oil, bbl
- 1.8K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Mar 17, 1987
- 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 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Ison, H. G. O-10-54935 | Garden City, S. (Wolfcamp) | McDonnold Operating, Inc. | 1 | 4.73K | 0 | Jul 2020 – Jul 2026 |
| Ison, H. G. O-10-31236 | Enterprise (Strawn) | McDonnold Operating, Inc. | 1 | 52.1K | 1.8K | Jan 1993 – Apr 2021 |
Oil, barrels lease total
Last 12 months 1,055 · prior 12 1,124(-6%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Texaco E & P Inc.Jan 1993 → Dec 1993
- 2Rasmussen, Hal J. Operating, IncJan 1994 → Jun 2004
- 3Elkhorn Oil & Gas, LLCJul 1994 → Jul 1995
- 4Platinum Exploration Inc.Jul 2004 → Jun 2007
- 5McDonnold Operating, Inc.Jul 2009 → Mar 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 324305-99 | Drill | Texaco Inc. | Dec 12, 1986 | Dec 12, 1986 | Dec 28, 1986 | 8,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-31236 | — | — | — | — |
| — | — O-10-54935 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,320 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Vale Shale | 2,835 | -515 |
| WolfcampWOLFCAMP LM. | 5,080 | -2,760 |
| Strawn | 7,045 | -4,725 |
| MississippianMISSISSIPPIAN CHT. | 7,230 | -4,910 |
| Ellenburger | 7,275 | -4,955 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,156 | 7,184 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 810 | 12.25 | 500 S |
| 8.625 | 1,905 | 9.875 | 500 S |
| 5.5 | 7,600 | 7.875 | 1,350 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 28, 2020 | Apr 9, 1987 | Yes |
| 00 | Jun 8, 1987 | Apr 9, 1987 | Yes |
| 00 | Jun 4, 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 42-335-33286 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-335-33286 → 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/33533286, documented in the API reference.