WELL · 42-389-36721 · DISTRICT 8
State Mayfly Unit #4H
Reeves County · Phantom (Wolfcamp) field · Producing · Horizontal
State Mayfly Unit #4H (API 42-389-36721) is a horizontal well in Reeves County operated by Eog Resources Inc., completed November 25, 2019 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued January 12, 2018, permitted to 14,000 ft.
Completion filings report 8 formation tops, including Castile, Bell Canyon, Delaware, Cherry Canyon.
No lease production has been reported under this well’s leases.
Operator of record
Midland, TX · P-5 Y, filed Jul 4, 2026 · 16,344 permits on file · (713) 594-5431
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | EOG Resources Inc. |
| Production reports | EOG Resources, Inc.through Apr 2026 |
| Latest permit | EOG Resources, Inc.Jan 12, 2018 |
- 14,000
- total depth, ft
- 2
- permits on file
- Jan 12, 2018
- last permit issued
- Nov 25, 2019
- completed
- 0
- cumulative oil, bbl
- 3.69M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Oct 2018 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Nov 25, 2019
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active
Surface location
31.489413, -103.703998
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 |
|---|---|---|---|---|---|---|
| State Mayfly Unit G-10-286597 | Phantom (Wolfcamp) | EOG Resources, Inc. | 1 | 0 | 3.69M | Oct 2018 – Jul 2026 |
Gas, mcf lease total
Last 12 months 174,391 · prior 12 204,716(-15%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1EOG Resources, Inc.Oct 2018 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 834911-98 | Drill | EOG Resources, Inc. | Jun 1, 2018 | Jan 12, 2018 | Jun 14, 2018 | 14,000 |
| 834911-99 | Drill | EOG Resources, Inc. | Jan 8, 2018 | Jan 12, 2018 | Jun 15, 2018 | 14,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-10-286597 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,864 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| CastileCASTILLE | 2,524 | 340 |
| Bell Canyon | 4,012 | -1,148 |
| Delaware | 4,012 | -1,148 |
| DelawareFORD-DELAWARE | 4,012 | -1,148 |
| Cherry Canyon | 4,842 | -1,978 |
| Bone SpringBONE SPRINGS | 7,246 | -4,382 |
| Wolfcamp | 9,918 | -7,054 |
| DelawareDELAWARE CONSOLIDATED GAS | — | — |
| Pennsylvanian | — | — |
| Permian (undifferentiated)PERMIAN | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 10,284 | 20,459 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 2,221 | 12.25 | 930 S |
| 7.625 | 9,502 | 8.75 | 920 S |
| 5.5 | 20,563 | 6.75 | 1,005 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 | Apr 1, 2020 | Dec 26, 2019 | Yes |
| 00 | Jun 14, 2019 | Apr 1, 2019 | 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 42-389-36721 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-389-36721 → 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.
State Mayfly Unit42-389-37151
0.0 KM · EOG Resources, Inc. · Section with this well →
| Delaware | 4,075 | -1,211 |
| Cherry Canyon | 5,000 | -2,136 |
| Bone Spring | 7,315 | -4,451 |
| Wolfcamp | 9,957 | -7,093 |
| Mississippian | — | |
| Delaware | — | |
| Permian (undifferentiated) | — | |
| Fusselman | — |
10 TOPS · FIRST 8
State Mayfly Unit42-389-36722
0.0 KM · EOG Resources, Inc. · Section with this well →
| Castile | 2,524 | 339 |
| Bell Canyon | 4,050 | -1,187 |
| Delaware | 4,050 | -1,187 |
| Delaware | 4,050 | -1,187 |
| Cherry Canyon | 4,841 | -1,978 |
| Bone Spring | 7,250 | -4,387 |
| Wolfcamp | 9,940 | -7,077 |
| Permian (undifferentiated) | — |
10 TOPS · FIRST 8
State Mayfly Unit42-389-37841
0.0 KM · EOG Resources, Inc. · Section with this well →
| Castile | 3,880 | -1,016 |
| Delaware | 4,079 | -1,215 |
| Bell Canyon | 4,079 | -1,215 |
| Delaware | 4,079 | -1,215 |
| Cherry Canyon | 5,004 | -2,140 |
| Bone Spring | 7,319 | -4,455 |
| Wolfcamp | 9,960 | -7,096 |
| Pennsylvanian | — |
10 TOPS · FIRST 8
State Mayfly Unit42-389-41860
0.2 KM · EOG Resources, Inc. · Section with this well →
| Bell Canyon | 4,047 | -1,185 |
| Delaware | 4,047 | -1,185 |
| Castile | 4,047 | -1,185 |
| Cherry Canyon | 4,975 | -2,113 |
| Bone Spring | 7,273 | -4,411 |
| Wolfcamp | 9,936 | -7,074 |
| Delaware | — | |
| Pennsylvanian | — |
10 TOPS · FIRST 8
State Mayfly Unit42-389-41861
0.2 KM · EOG Resources, Inc. · Section with this well →
| Wolfcamp | — | |
| Bell Canyon | — | |
| Bone Spring | — | |
| Castile | — | |
| Cherry Canyon | — | |
| Delaware | — | |
| Delaware | — | |
| Delaware | — |
10 TOPS · FIRST 8
State Mayfly Unit42-389-41859
0.2 KM · EOG Resources, Inc. · Section with this well →
| Bell Canyon | — | |
| Bone Spring | — | |
| Castile | — | |
| Cherry Canyon | — | |
| Delaware | — | |
| Delaware | — | |
| Delaware | — | |
| Pennsylvanian | — |
10 TOPS · FIRST 8
State Einhorn Unit42-389-40197
0.4 KM · EOG Resources, Inc. · Section with this well →
| Castile | 3,878 | -1,018 |
| Bell Canyon | 4,030 | -1,170 |
| Delaware | 4,030 | -1,170 |
| Delaware | 4,030 | -1,170 |
| Cherry Canyon | 4,966 | -2,106 |
| Bone Spring | 7,269 | -4,409 |
| Wolfcamp | 9,942 | -7,082 |
| Pennsylvanian | — |
10 TOPS · FIRST 8
State Einhorn Unit42-389-40191
0.4 KM · EOG Resources, Inc. · Section with this well →
| Castile | 3,877 | -1,017 |
| Bell Canyon | 4,029 | -1,169 |
| Delaware | 4,029 | -1,169 |
| Delaware | 4,029 | -1,169 |
| Cherry Canyon | 4,965 | -2,105 |
| Bone Spring | 7,268 | -4,408 |
| Wolfcamp | 9,941 | -7,081 |
| Pennsylvanian | — |
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/38936721, documented in the API reference.