WELL · 42-227-40495 · DISTRICT 8
Dunkin Unit A1 #8AH
Howard County · Spraberry (Trend Area) field · Producing · Horizontal
Dunkin Unit A1 #8AH (API 42-227-40495) is a horizontal well in Howard County operated by Apache Corporation, completed June 2, 2020 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued December 11, 2019, permitted to 8,950 ft.
It was permitted by Callon Petroleum Operating CO and has since transferred to Apache Corporation on the wellbore schedule.
Completion filings report 10 formation tops, including Yates, Seven Rivers, San Andres, Glorieta.
Its lease has reported 397K barrels of oil and 619K mcf of gas since June 2020, last reporting in July 2026.
Operator of record
Permitted by Callon Petroleum Operating Co; the EWA schedule now lists a different operator.
Houston, TX · P-5 Y, filed Oct 4, 2025 · 9,754 permits on file · (713) 296-6400
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Apache Corporation |
| Production reports | Apache Corporationthrough Apr 2026 |
| Latest permit | Callon Petroleum Operating CoDec 11, 2019 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 8,950
- total depth, ft
- 2
- permits on file
- Dec 11, 2019
- last permit issued
- Jun 2, 2020
- completed
- 397K
- cumulative oil, bbl
- 619K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jun 2020 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jun 2, 2020
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active
Surface location
32.518631, -101.652449
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Howard County.
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; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Dunkin Unit A1 O-10-55235 | Spraberry (Trend Area) | Apache Corporation | 1 | 397K | 619K | Jun 2020 – Jul 2026 |
Oil, barrels lease total
Last 12 months 15,517 · prior 12 18,896(-18%)
Gas, mcf lease total
Last 12 months 71,259 · prior 12 30,599(+133%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Callon Petroleum Operating CoJun 2020 → Jul 2024
- 2Apache CorporationAug 2024 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 859643-98 | Drill | Callon Petroleum Operating Co | Dec 12, 2019 | Dec 11, 2019 | Jan 20, 2020 | 8,950 |
| 859643-99 | Drill | Callon Petroleum Operating Co | Dec 4, 2019 | Dec 11, 2019 | Jan 20, 2020 | 8,950 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-55235 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Download CSV →
| Formation | MD ft |
|---|---|
| Yates | 2,075 |
| Seven Rivers | 2,200 |
| San AndresSAN ANDRES - HIGH FLOWS, H2S, CO | 3,435 |
| Glorieta | 4,380 |
| Clear ForkCLEARFORK - SEVERE WATER FLOWS | 5,825 |
| Spraberry | 6,660 |
| Dean | 7,993 |
| Wolfcamp | 8,188 |
| Coleman Junction | — |
| Leonard | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,716 | 18,278 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 1,265 | 17.5 | 912 S |
| 9.625 | 7,510 | 12.25 | 829 S |
| 7 | 13,970 | 8.75 | 3,220 S |
| 5.5 | 18,444 | 8.5 | 3,220 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 | Jan 22, 2021 | Jan 4, 2021 | Yes |
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 42-227-40495 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-227-40495 → 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.
Nearby wells and their tops
NEAREST 8 LOCATED WELLS WITH TOPS · WITHIN 16 KM
Draw a cross-section
This well's tops beside its 5 nearest neighbours, subsea-aligned so they line up regardless of surface terrain.
Dunkin Unit A242-227-40496
0.0 KM · Callon Petroleum Operating Co · Section with this well →
| Seven Rivers | 1,075 | |
| Santa Rosa | 1,075 | |
| Yates | 2,075 | |
| Queen | 2,830 | |
| San Andres | 3,435 | |
| Glorieta | 4,380 | |
| Clear Fork | 5,825 | |
| Spraberry | 6,660 |
12 TOPS · FIRST 8
Dunkin Unit A242-227-40497
0.0 KM · Callon Petroleum Operating Co · Section with this well →
| Santa Rosa | 1,075 | |
| Yates | 2,075 | |
| Seven Rivers | 2,200 | |
| Queen | 2,830 | |
| San Andres | 3,435 | |
| Glorieta | 4,380 | |
| Clear Fork | 5,825 | |
| Spraberry | 6,660 |
12 TOPS · FIRST 8
Posh A142-227-42194
0.2 KM · Callon Petroleum Operating Co · Section with this well →
| Clear Fork | 4,863 | -2,110 |
| Spraberry | 6,637 | -3,884 |
| Dean | 7,988 | -5,235 |
| Wolfcamp | 8,164 | -5,411 |
| San Andres | — | |
| Rustler | — | |
| Glorieta | — | |
| Yates | — |
10 TOPS · FIRST 8
Blagrave A142-227-42193
0.2 KM · Callon Petroleum Operating Co · Section with this well →
| Santa Rosa | 1,075 | 1,678 |
| Rustler | 1,523 | 1,230 |
| Yates | 2,058 | 695 |
| Seven Rivers | 2,172 | 581 |
| San Andres | 3,652 | -899 |
| Glorieta | 4,574 | -1,821 |
| Clear Fork | 4,993 | -2,240 |
| Spraberry | 6,511 | -3,758 |
10 TOPS · FIRST 8
Posh A242-227-42195
0.2 KM · Callon Petroleum Operating Co · Section with this well →
| Clear Fork | 4,865 | -2,112 |
| Clear Fork | 5,740 | -2,987 |
| Spraberry | 6,637 | -3,884 |
| San Andres | — | |
| Rustler | — | |
| Leonard | — | |
| Glorieta | — | |
| Santa Rosa | — |
10 TOPS · FIRST 8
Dunkin Unit42-227-41701
0.3 KM · Callon Petroleum Operating Co · Section with this well →
| Santa Rosa | 1,075 | |
| Rustler | 1,495 | |
| Yates | 2,090 | |
| Seven Rivers | 2,245 | |
| San Andres | 3,200 | |
| Glorieta | 4,575 | |
| Clear Fork | 5,835 | |
| Spraberry | 6,680 |
10 TOPS · FIRST 8
Dunkin Unit42-227-41703
0.3 KM · Callon Petroleum Operating Co · Section with this well →
| Santa Rosa | 1,075 | |
| Rustler | 1,495 | |
| Yates | 2,090 | |
| Seven Rivers | 2,245 | |
| San Andres | 3,200 | |
| Glorieta | 4,575 | |
| Clear Fork | 5,835 | |
| Spraberry | 6,680 |
10 TOPS · FIRST 8
Dunkin Unit42-227-41702
0.3 KM · Callon Petroleum Operating Co · Section with this well →
| Santa Rosa | 1,075 | |
| Rustler | 1,495 | |
| Yates | 2,090 | |
| Seven Rivers | 2,245 | |
| San Andres | 3,200 | |
| Glorieta | 4,575 | |
| Clear Fork | 5,835 | |
| Spraberry | 6,680 |
10 TOPS · FIRST 8
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/22740495, documented in the API reference.