WELL · 42-227-35163 · DISTRICT 8
Dillard O #4601
Howard County · Talbot (Canyon) field · Vertical
Dillard O #4601 (API 42-227-35163) is a plugged well in Howard County, plugged December 3, 1999, last operated by Costilla Energy Inc..
The RRC has issued one drilling permit, issued March 13, 1997, permitted to 9,000 ft.
Completion filings report 3 formation tops, including Leonard, Pennsylvanian, Canyon.
Its lease has reported 22.5K barrels of oil and 200K mcf of gas since May 1997, last reporting in January 2000.
Operator of record
- Based in
- Midland, TX
- P-5 status
- Inactive (I)
- P-5 last filed
- Dec 8, 1999
- Permits on file
- 173
- Phone
- (432) 683-3092
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Costilla Energy Inc. |
| Production reports | Costilla Energy, Inc.through Sep 1999 |
| Latest permit | Costilla Energy, Inc.Mar 13, 1997 |
- 9,000
- total depth, ft
- 1
- permits on file
- Mar 13, 1997
- last permit issued
- May 12, 1997
- completed
- 22.5K
- cumulative oil, bbl
- 200K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · May 1997 THROUGH Jan 2000
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- May 12, 1997
- Shut in
- —
- Plugged
- Dec 3, 1999
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; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Dillard "O" O-10-35381 | Talbot (Canyon) | Costilla Energy, Inc. | 1 | 22.5K | 200K | May 1997 – Jan 2000 |
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.
- 1Costilla Energy, Inc.May 1997 → Sep 1999
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 459868-99 | Drill | Costilla Energy, Inc. | Mar 13, 1997 | Mar 13, 1997 | Apr 13, 1997 | 9,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-35381 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,648 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Leonard | 5,400 | -2,752 |
| PennsylvanianPENN | 8,461 | -5,813 |
| CanyonCANYON REEF | 8,648 | -6,000 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,672 | 8,691 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 360 | 17.5 | 550 S |
| 9.625 | 3,351 | 12.25 | 950 S |
| 5.5 | 8,694 | 7.875 | 895 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 | Aug 8, 1997 | May 19, 1997 | Yes |
| 00 | Jul 28, 1997 | — | — |
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 42-227-35163 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-227-35163 → 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/22735163, documented in the API reference.