TEXAS · WELLS · HOWARD COUNTY · G. O. CHALK -A- LEASE · API 42-227-33925 · DISTRICT 7B
G. O. Chalk -A- #15
Howard County · Howard-Glasscock (Wolfcamp 7400) field · Vertical
G. O. Chalk -A- #15 (API 42-227-33925) is a plugged well in Howard County, plugged May 22, 1996, last operated by Conocophillips Company.
The RRC has issued one drilling permit, issued December 3, 1985, permitted to 7,475 ft.
It was permitted by Conoco Inc. and has since transferred to Conocophillips Company on the wellbore schedule.
Completion filings report one formation top, including Wolfcamp.
Its lease has reported 18.9K barrels of oil and 11.9K mcf of gas since January 1993, last reporting in March 2015. The lease carries 2 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Conoco Inc.; the EWA schedule now lists a different operator.
- Based in
- Midland, TX
- P-5 status
- Active (A)
- P-5 last filed
- Feb 3, 2026
- Permits on file
- 3,290
- Phone
- (432) 683-7443
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Conocophillips Company |
| Production reports | Conoco Inc.through Feb 1998 |
| Latest permit | Conoco Inc.Dec 3, 1985 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 7,475
- total depth, ft
- 1
- permits on file
- Dec 3, 1985
- last permit issued
- Jan 25, 1986
- completed
- 18.9K
- cumulative oil, bbl
- 11.9K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Mar 2015
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Jan 25, 1986
- Shut in
- —
- Plugged
- May 22, 1996
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 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| G. O. Chalk -A- O-10-30741 | Howard-Glasscock (Wolfcamp 7400) | Conocophillips Company | 2 | 18.9K | 11.9K | Jan 1993 – Mar 2015 |
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.
- 1Conoco Inc.Jan 1993 → Feb 1998
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 291521-99 | Drill | Conoco Inc. | Nov 19, 1985 | Dec 3, 1985 | — | 7,475 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jan 25, 1986 | G. O. Chalk -A- O-10-30741 | Howard-Glasscock (Wolfcamp 7400) | Conocophillips Company | Plugged | — |
| Jan 25, 1986 | Chalk G.O. -A- O-10-29891 | Howard Glasscock (Wolfcamp 7325) | Conoco Inc. | Plugged | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,407 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| WolfcampWOLFCAMP 7325 | 7,380 | -4,973 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,280 | 7,350 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 1,153 | 12.25 | 480 S |
| 5.5 | 7,480 | 7.875 | 2,300 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 | Jul 10, 1986 | Feb 4, 1986 | Yes |
| 00 | Jun 24, 1986 | — | — |
| 00 | Feb 24, 1986 | Feb 4, 1986 | Yes |
| 00 | Feb 12, 1986 | — | — |
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 42-227-33925 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-227-33925 → 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/22733925, documented in the API reference.