WELL · 42-461-35776 · DISTRICT 7
Halff 18 #2
Upton County · Amacker-Tippett SW (Wolfcamp) field · Vertical
Halff 18 #2 (API 42-461-35776) is a well in Upton County operated by Eog Resources Inc., completed July 18, 2008.
The RRC has issued 2 drilling permits (amended once) in 2008, permitted to 10,600 ft.
Completion filings report 3 formation tops, including Spraberry, Wolfcamp, Amacker Wolfcamp.
Its 2 leases have reported 154K barrels of oil and 539K mcf of gas since July 2008, last reporting in July 2026. The leases carry 3 wells, so these are lease totals, not this well alone.
Operator of record
- Based in
- Midland, TX
- P-5 status
- Active (A)
- P-5 last filed
- Oct 2, 2025
- Permits on file
- 16,348
- Phone
- (713) 651-7000
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | EOG Resources Inc. |
| Production reports | COG Operating LLCthrough Apr 2026 |
| Latest permit | EOG Resources, Inc.Dec 15, 2008 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 10,600
- total depth, ft
- 3
- permits on file
- Dec 15, 2008
- last permit issued
- Jul 18, 2008
- completed
- 154K
- cumulative oil, bbl
- 539K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jul 2008 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Jul 18, 2008
- 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 |
|---|---|---|---|---|---|---|
| Jordyn O-9-16834 | Spraberry (Trend Area) | COG Operating LLC | 2 | 84.5K | 473K | Nov 2008 – Jul 2026 |
| Halff "18" O-9-16831 | Amacker-Tippett, SW (Wolfcamp) | EOG Resources, Inc. | 1 | 69.8K | 66.2K | Jul 2008 – Feb 2009 |
Oil, barrels lease total
Last 12 months 2,086 · prior 12 2,876(-27%)
Gas, mcf lease total
Last 12 months 1,655 · prior 12 2,614(-37%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1EOG Resources, Inc.Jul 2008 → Feb 2012
- 2Summit Petroleum LLCMar 2012 → Feb 2017
- 3COG Operating LLCMar 2017 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 676172-99 | Recompletion | EOG Resources, Inc. | Dec 10, 2008 | Dec 15, 2008 | Sep 9, 2008 | 10,600 |
| 658355-98 | Drill | EOG Resources, Inc. | Aug 1, 2008 | Apr 10, 2008 | Jun 20, 2008 | 10,600 |
| 658355-99 | Drill | EOG Resources, Inc. | Mar 28, 2008 | Apr 10, 2008 | Jun 20, 2008 | 10,600 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-9-16831 | — | — | — | — |
| — | — O-9-16834 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,650 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 6,550 | 9,990 | Perforated |
| 9,020 | 9,030 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 11.75 | 542 | 14.75 | 400 S |
| 8.625 | 4,705 | 11 | 1,250 S |
| 5.5 | 9,036 | 7.875 | 1,225 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 | Mar 5, 2009 | Dec 19, 2008 | Yes |
| 00 | Mar 3, 2009 | Aug 6, 2008 | Yes |
| 00 | Feb 12, 2009 | — | — |
| 00 | Feb 11, 2009 | — | — |
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 42-461-35776 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-461-35776 → 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.
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/46135776, documented in the API reference.