TEXAS · WELLS · DAWSON COUNTY · WEST WELCH UNIT LEASE · API 42-115-31654 · DISTRICT 7B
West Welch Unit #6107
Dawson County · Welch field · Injection · Vertical
West Welch Unit #6107 (API 42-115-31654) is a well in Dawson County operated by Hilcorp Energy Company, completed February 1, 2023 and listed as injection on the RRC schedule.
The RRC has issued one drilling permit, issued December 16, 1981, permitted to 4,933 ft.
It was permitted by Cities Service Company and has since transferred to Hilcorp Energy Company on the wellbore schedule.
Completion filings report 3 formation tops, including Tansill, Yates, Grayburg.
Its lease has reported 20.4M barrels of oil and 7.45M mcf of gas since January 1993, last reporting volume in April 2026. The lease carries 687 wells, so these are lease totals, not this well alone.
It holds an active disposal or injection permit, with 24K barrels injected in the 12 months reported through August 2025.
Operator of record
Permitted by Cities Service Company; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- Mar 27, 2026
- Permits on file
- 3,458
- Phone
- (713) 209-2400
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Hilcorp Energy Company |
| Production reports | OXY USA WTP EOR, LLCthrough Apr 2026 |
| Latest permit | Cities Service CompanyDec 16, 1981 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 4,933
- total depth, ft
- 1
- permits on file
- Dec 16, 1981
- last permit issued
- Feb 1, 2023
- completed
- 20.4M
- cumulative oil, bbl
- 7.45M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Feb 1, 2023
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active (A)
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.
Wells nearby
Every well with a location on file around this well, in any state, nearest first.
Texas locations come from drilling permits, so most older Texas wells have none and are not listed.
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 687 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| West Welch Unit O-11-14783 | Welch | OXY USA WTP EOR, LLC | 687 | 20.4M | 7.45M | Jan 1993 – Apr 2026 |
Oil, barrels lease total
Last 12 months 150,556 · prior 12 191,736(-21%)
Gas, mcf lease total
Last 12 months 76,284 · prior 12 90,932(-16%)
Wells named West Welch Unit
Hilcorp Energy Company's other wells filed under this lease name in Dawson County, newest permit first. The RRC gives a gas well its own lease number, so the name is what joins the wells of a unit.
Loading the lease's wellsChain of custody
Every operator that reported production on this well's lease, in order.
- 1OXY USA Inc.Jan 1993 → Dec 2000
- 2OXY USA WTP LPJan 2001 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 144769-99 | Drill | Cities Service Company | Dec 16, 1981 | Dec 16, 1981 | Jan 9, 1982 | 4,951 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Feb 1, 2023 | West Welch Unit O-11-14783 | Welch | Hilcorp Energy Company | Injection | 4,933 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,823 | 4,884 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 2,019 | 12.25 | 970 S |
| 2.375 | 4,790 | — | — |
| 5.5 | 4,931 | 7.875 | 1,150 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. The record date is the RRC's own date on the record, not the day the report was filed: 462,034 of the state's filings carry 1984-01-12. About these reports →
| Suffix | RRC record date | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Sep 24, 2024 | Sep 10, 2023 | — |
| 00 | Jan 12, 1984 | Sep 14, 1982 | — |
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 42-115-31654 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-115-31654 → scanned completion filings
Log images filed since 2004 open from the RRC's log search for this well; none are loaded here for it. The University Lands library has no per-well link: then paste it into its search.
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Injection
- 24K
- bbl, last 12 reported months
- 2.41M
- bbl, all reported
- Aug 2025
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000044919 | H-1 Injection | Active | 5,030 | 2,350 | 4,700–5,100 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 23,982 · prior 12 10,004(+140%)
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/11531654, documented in the API reference.