WELL · 42-227-33951 · DISTRICT 8
Chalk Estate #22
Howard County · Howard-Glasscock (Wolfcamp 7400) field · Vertical
Chalk Estate #22 (API 42-227-33951) is a well in Howard County operated by Citation Oil & Gas Corp., completed April 7, 1986.
The RRC has issued 2 drilling permits between 1986 and 1994, permitted to 8,500 ft.
It was permitted by Conoco Inc. and has since transferred to Citation Oil & Gas Corp. on the wellbore schedule.
Completion filings report 9 formation tops, including Yates, Seven Rivers, Queen, Grayburg.
Its 2 leases have reported 932 barrels of oil and 332K mcf of gas since January 1993, last reporting in July 2026. The leases carry 3 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.
Houston, TX · P-5 Y, filed Mar 4, 2026 · 866 permits on file · (281) 891-1000
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Citation Oil & Gas Corp. |
| Production reports | Citation Oil & Gas Corp.through Apr 2026 |
| Latest permit | Conoco Inc.Nov 17, 1994 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 8,500
- total depth, ft
- 2
- permits on file
- Nov 17, 1994
- last permit issued
- Apr 7, 1986
- completed
- 932
- cumulative oil, bbl
- 332K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Apr 7, 1986
- 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 3 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Chalk Estate G-10-153661 | Howard-Glasscock (Wolfcamp 7400) | Citation Oil & Gas Corp. | 1 | 0 | 328K | Jan 1995 – Jul 2026 |
| Chalk Estate O-10-22542 | Howard-Glasscock (Wolfcamp 7400) | Citation Oil & Gas Corp. | 2 | 932 | 3.41K | Jan 1993 – Jul 2026 |
Gas, mcf lease total
Last 12 months 81 · prior 12 31(+161%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Conoco Inc.Jan 1993 → Nov 2002
- 2Conocophillips CompanyJan 2003 → Jan 2018
- 3Citation Oil & Gas Corp.Mar 2018 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 430155-99 | Recompletion | Conoco Inc. | Nov 17, 1994 | Nov 17, 1994 | Dec 21, 1994 | 8,500 |
| 294649-99 | Drill | Mobil Producing TX. & N.M. Inc. | Jan 7, 1986 | Jan 7, 1986 | Jan 26, 1986 | 8,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-10-153661 | — | — | — | — |
| — | — O-10-22542 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,423 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Yates | 1,180 | 1,243 |
| Seven Rivers | 1,268 | 1,155 |
| Queen | 1,484 | 939 |
| Grayburg | 1,755 | 668 |
| San Andres | 1,860 | 563 |
| Glorieta | 2,470 | -47 |
| Clear ForkCLEARFORK | 2,978 | -555 |
| Wolfcamp | 7,300 | -4,877 |
| Strawn | 7,585 | -5,162 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,302 | 7,388 | Perforated |
| 7,585 | 7,716 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 350 | 17.5 | 400 S |
| 9.625 | 3,950 | 12.25 | 1,800 S |
| 5.5 | 8,000 | 7.875 | 1,050 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 | Nov 17, 1995 | Feb 8, 1995 | — |
| 00 | Apr 27, 1995 | — | — |
| 00 | Jun 25, 1986 | Jun 4, 1986 | Yes |
| 00 | Jun 19, 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 42-227-33951 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-227-33951 → 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/22733951, documented in the API reference.