WELL · 42-105-34983 · DISTRICT 7
Halff Field Unit #2121
Crockett County · Vertical
Halff Field Unit #2121 (API 42-105-34983) is a former disposal or injection well in Crockett County, last operated by Zachry Oil And Gas Properties; its UIC permit is no longer active.
The RRC has issued 2 drilling permits between 1985 and 1997, permitted to 2,000 ft.
Its lease has reported 277K barrels of oil and 4.27K mcf of gas since January 1993, last reporting in July 2026. The lease carries 137 wells, so these are lease totals, not this well alone.
Operator of record
Midland, TX · P-5 Y, filed Jul 4, 2026 · 12 permits on file · (210) 416-4456
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | none |
| Production reports | Ecowell Oil and Gas LLCthrough Jun 2024 |
| Latest permit | Zachry Oil and Gas PropertiesJul 3, 1997 |
- 2,000
- total depth, ft
- 2
- permits on file
- Jul 3, 1997
- last permit issued
- —
- completed
- 277K
- cumulative oil, bbl
- 4.27K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- —
- 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 lease this well is completed on; they carry 137 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Halff Field Unit O-9-4709 | Halff | Ecowell Oil and Gas LLC | 137 | 277K | 4.27K | Jan 1993 – Jul 2026 |
Oil, barrels lease total
Last 12 months 0 · prior 12 161(-100%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Canyon Resources, IncJan 1993 → Mar 1993
- 2Chanc West, Inc.Jun 1993 → Mar 1995
- 3Zachry Oil and Gas PropertiesApr 1995 → Jul 2001
- 4Quay Valley, Inc.Aug 2001 → Dec 2002
- 5HDL Oil Properties, Inc.Jan 2003 → Oct 2006
- 6Hank Oil & Gas, Inc.Nov 2006 → Feb 2018
- 7Ecowell Oil and Gas LLCFeb 2024 → Jun 2024
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 463532-99 | Reclass | Zachry Oil and Gas Properties | Jun 9, 1997 | Jul 3, 1997 | — | 2,000 |
| 265034-99 | Drill | Canyon Resources, Inc | Dec 21, 1984 | Jan 23, 1985 | — | 1,995 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-9-4709 | — | — | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 1,944 | 1,948 | Perforated |
| 1,944 | 1,967 | Perforated |
| 1,950 | 1,957 | Perforated |
| 1,958 | 1,962 | Perforated |
| 1,964 | 1,967 | Perforated |
| 1,968 | 1,979 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 845 | 11 | 300 S |
| 4.5 | 2,051 | 7.875 | 360 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 21, 1997 | May 21, 1997 | — |
| 00 | Aug 22, 1985 | Aug 8, 1985 | — |
| 00 | Aug 18, 1985 | — | — |
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 42-105-34983 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-105-34983 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward) and the University Lands library. then paste it into their search.
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Injection
- 0
- bbl, last 12 reported months
- 6.59K
- bbl, all reported
- Jun 1997
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000055959 | H-1 Injection | Canceled Jul 23, 1997 | 200 | 992 | 1,885–1,933 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 0 · prior 12 0
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/10534983, documented in the API reference.