WELL · 42-389-38980 · DISTRICT 8
Haflinger 20 UA #1WA
Reeves County · Hoefs T-K (Wolfcamp) field · Producing · Horizontal
Haflinger 20 UA #1WA (API 42-389-38980) is a horizontal well in Reeves County operated by Diamondback E&P LLC, completed January 24, 2021 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued March 20, 2020, permitted to 13,000 ft.
Completion filings report 8 formation tops, including Cherry Canyon, Bone Spring, Wolfcamp, Bell Canyon.
Its lease has reported 435K barrels of oil and 824K mcf of gas since June 2020, last reporting in July 2026.
Operator of record
Midland, TX · P-5 Y, filed Mar 4, 2026 · 5,231 permits on file · (855) 247-5920
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Diamondback E&P LLC |
| Production reports | Diamondback E&P LLCthrough Apr 2026 |
| Latest permit | Diamondback E&P LLCMar 20, 2020 |
- 13,000
- total depth, ft
- 2
- permits on file
- Mar 20, 2020
- last permit issued
- Jan 24, 2021
- completed
- 435K
- cumulative oil, bbl
- 824K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jun 2020 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jan 24, 2021
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: X
Surface location
31.386725, -103.280888
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Reeves 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 |
|---|---|---|---|---|---|---|
| Haflinger 20 UA O-10-54736 | Hoefs T-K (Wolfcamp) | Diamondback E&P LLC | 1 | 435K | 824K | Jun 2020 – Jul 2026 |
Oil, barrels lease total
Last 12 months 30,839 · prior 12 39,149(-21%)
Gas, mcf lease total
Last 12 months 43,155 · prior 12 71,379(-40%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Diamondback E&P LLCJan 2021 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 861972-98 | Drill | Diamondback E&P LLC | Sep 4, 2020 | Mar 20, 2020 | Apr 3, 2020 | 13,000 |
| 861972-99 | Drill | Diamondback E&P LLC | Feb 17, 2020 | Mar 20, 2020 | Apr 3, 2020 | 13,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-10-54736 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,548 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Cherry Canyon | 5,856 | -3,308 |
| Bone Spring | 8,008 | -5,460 |
| Wolfcamp | 10,671 | -8,123 |
| Bell Canyon | — | — |
| CastileCASTILLE | — | — |
| Delaware | — | — |
| DelawareDELAWARE CONSOLIDATED GAS | — | — |
| DelawareFORD / DELAWARE | — | — |
| Pennsylvanian | — | — |
| Permian (undifferentiated)PERMIAN (UNDEFINED) | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 11,246 | 20,836 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 2,516 | 16 | 1,940 S |
| 9.625 | 10,077 | 12.25 | 370 S |
| 5.5 | 20,927 | 8.5 | 4,695 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 14, 2021 | Jun 17, 2021 | Yes |
| 00 | Oct 7, 2020 | Sep 16, 2020 | — |
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 42-389-38980 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-389-38980 → 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.
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.
Haflinger 20 C42-389-38981
0.0 KM · Diamondback E&P LLC · Section with this well →
| Cherry Canyon | 5,874 | -3,327 |
| Bone Spring | 8,015 | -5,468 |
| Wolfcamp | 10,688 | -8,141 |
| Delaware | — | |
| Bell Canyon | — | |
| Delaware | — | |
| Castile | — | |
| Delaware | — |
10 TOPS · FIRST 8
Haflinger 20 B42-389-38979
0.0 KM · Diamondback E&P LLC · Section with this well →
| Delaware | 4,910 | -2,362 |
| Cherry Canyon | 5,861 | -3,313 |
| Bone Spring | 8,011 | -5,463 |
| Wolfcamp | 10,695 | -8,147 |
| Pennsylvanian | — | |
| Delaware | — | |
| Delaware | — | |
| Precambrian (Undifferentiated) | — |
11 TOPS · FIRST 8
State Norman 45-46 D42-389-38758
0.2 KM · Diamondback E&P LLC · Section with this well →
| Castile | 2,500 | 46 |
| Delaware | 4,900 | -2,354 |
| Bell Canyon | 4,930 | -2,384 |
| Cherry Canyon | 5,870 | -3,324 |
| Bone Spring | 8,040 | -5,494 |
| Delaware | — | |
| Pennsylvanian | — | |
| Wolfcamp | — |
10 TOPS · FIRST 8
State Norman 45-46 C42-389-38757
0.2 KM · Diamondback E&P LLC · Section with this well →
| Castile | 2,500 | 46 |
| Delaware | 4,900 | -2,354 |
| Bell Canyon | 4,930 | -2,384 |
| Cherry Canyon | 5,875 | -3,329 |
| Bone Spring | 8,020 | -5,474 |
| Devonian | — | |
| Wolfcamp | — | |
| Permian (undifferentiated) | — |
11 TOPS · FIRST 8
State Norman 45-46 B42-389-38755
0.2 KM · Diamondback E&P LLC · Section with this well →
| Castile | 2,500 | 47 |
| Delaware | 4,905 | -2,358 |
| Bell Canyon | 4,935 | -2,388 |
| Cherry Canyon | 5,860 | -3,313 |
| Bone Spring | 8,050 | -5,503 |
| Wolfcamp | 10,718 | -8,171 |
| Delaware | — | |
| Delaware | — |
10 TOPS · FIRST 8
State Norman 45-46 A42-389-38754
0.3 KM · Diamondback E&P LLC · Section with this well →
| Castile | 2,500 | 46 |
| Delaware | 4,900 | -2,354 |
| Bell Canyon | 4,930 | -2,384 |
| Cherry Canyon | 5,860 | -3,314 |
| Bone Spring | 8,040 | -5,494 |
| Wolfcamp | 10,695 | -8,149 |
| Permian (undifferentiated) | — | |
| Pennsylvanian | — |
10 TOPS · FIRST 8
Choctaw 1-21 B42-389-38033
0.7 KM · Diamondback E&P LLC · Section with this well →
| Bell Canyon | 4,947 | -2,412 |
| Cherry Canyon | 5,910 | -3,375 |
| Bone Spring | 8,071 | -5,536 |
| Wolfcamp | 10,802 | -8,267 |
| Delaware | — | |
| Delaware | — | |
| Pennsylvanian | — | |
| Permian (undifferentiated) | — |
10 TOPS · FIRST 8
Choctaw 1-21 A42-389-38032
0.7 KM · Diamondback E&P LLC · Section with this well →
| Bell Canyon | 4,954 | -2,420 |
| Wolfcamp | 10,730 | -8,196 |
| Permian (undifferentiated) | — | |
| Pennsylvanian | — | |
| Mississippian | — | |
| Fusselman | — | |
| Delaware | — | |
| Ellenburger | — |
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/38938980, documented in the API reference.