WELL · 42-227-30494 · DISTRICT 8
Chalk Otis #9W
Howard County · Howard Glasscock field · Vertical
Chalk Otis #9W (API 42-227-30494) is a well in Howard County operated by Tradition Resources Oper LLC, completed May 10, 1973.
The RRC has issued one drilling permit, issued May 24, 1993, permitted to 2,400 ft.
It was permitted by Union Oil Company Of California and has since transferred to Tradition Resources Oper LLC on the wellbore schedule.
Completion filings report 3 formation tops, including Yates, Seven Rivers, Queen.
Its 2 leases have reported 891K barrels of oil and 253K mcf of gas since January 1993, last reporting in July 2026. The leases carry 92 wells, so these are lease totals, not this well alone.
It holds an active disposal or injection permit, with 36.1K barrels injected in the 12 months reported through December 2025.
Operator of record
Permitted by Union Oil Company of California; the EWA schedule now lists a different operator.
Houston, TX · P-5 Y, filed Nov 3, 2017 · 5 permits on file · (432) 260-9412
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Tradition Resources Oper LLC |
| Production reports | Unitex Oil & Gas, L.L.C.through Apr 2026 |
| Latest permit | Union Oil Company of CaliforniaMay 24, 1993 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 2,400
- total depth, ft
- 1
- permits on file
- May 24, 1993
- last permit issued
- May 10, 1973
- completed
- 891K
- cumulative oil, bbl
- 253K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- May 10, 1973
- 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 92 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Chalk, Otis O-10-41051 | Howard Glasscock (Consolidated) | Unitex Oil & Gas, L.L.C. | 42 | 481K | 26.6K | Dec 2011 – Jul 2026 |
| Chalk, Otis O-10-2792 | Howard Glasscock | Tradition Resources Oper, LLC | 50 | 410K | 226K | Jan 1993 – Feb 2014 |
Oil, barrels lease total
Last 12 months 22,562 · prior 12 25,337(-11%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Union Oil Company of CaliforniaJan 1993 → May 2000
- 2Pure Resources, L.P.Jun 2000 → Mar 2006
- 3Chevron Midcontinent, L.P.Apr 2006 → Dec 2010
- 4Tradition Resources LLCJan 2011 → Jan 2014
- 5Tradition Resources Oper, LLCFeb 2014 → Jun 2017
- 6Unitex Oil & Gas, L.L.C.Jul 2017 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 411990-99 | Recompletion | Union Oil Company of California | May 21, 1993 | May 24, 1993 | May 17, 1993 | 2,400 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-2792 | — | — | — | — |
| — | — O-10-2792 | — | — | — | — |
| — | — O-10-41051 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,526 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Yates | 1,272 | 1,254 |
| Seven Rivers7 RIVERS | 1,359 | 1,167 |
| Queen | 1,551 | 975 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 1,583 | 1,759 | Perforated |
| 2,101 | 2,165 | Perforated |
| 2,101 | 2,272 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 5.5 | 1,820 | 7.875 | 600 S |
| 5.5 | 1,820 | — | — |
| 4 | 2,418 | 4.75 | 180 S |
| 4 | 2,418 | — | — |
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 | Jan 15, 2014 | Oct 11, 2013 | — |
| 00 | Jan 13, 2012 | Dec 5, 1995 | — |
| 00 | Aug 12, 2010 | Dec 5, 1995 | — |
| 00 | May 13, 1994 | Dec 15, 1993 | — |
| 00 | Apr 26, 1994 | Aug 30, 1989 | — |
| 00 | Nov 20, 1989 | Aug 30, 1989 | — |
| 00 | Jan 12, 1984 | May 23, 1973 | — |
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 42-227-30494 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-227-30494 → 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.
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Injection
- 36.1K
- bbl, last 12 reported months
- 2.34M
- bbl, all reported
- Dec 2025
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000015669 | H-1 Injection | Active | 600 | 900 | 1,850–2,700 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 36,077 · prior 12 39,458(-9%)
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/22730494, documented in the API reference.