42-211-35513

Final Completion Horizontal

NIX 91

HEMPHILL County · District 10 · APACHE CORPORATION · WILDCAT

Permits

Max Depth

16,000 ft

First Permit

2015-09-14

Latest Activity

2017-06-26

Lifespan

2 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

2016-01-24

Shut-In

—

Plugged

—

EWA / Production operator mismatch

Scheduling: APACHE CORPORATION ≠ Production: PRESIDIO PETROLEUM LLC (reported 2026-04)

Resolved via: production → PRESIDIO PETROLEUM LLC

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

2016-01

Last Production

2026-07

Operator History

Chain of Custody

APACHE CORPORATION 2016-2019→ PRESIDIO PETROLEUM LLC 2019-2026

Lease Production

Production is reported at the lease level. View production data, decline curves, and history on the lease page.

Formation Tops (10) Elevation 2,523 ft (GR)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
BROWN DOLOMITE - PROD, PRESSURED (Brown Dolomite)	3,853 ft	-1,330 ft
PENNSYLVANIAN (MARMATON) (Pennsylvanian)	9,272 ft	-6,749 ft
BROWNSVILLE	—	—
CLEVELAND	—	—
DOUGLAS	—	—
KANSAS CITY (HOGSHOOTER) (Kansas City)	—	—
OSWEGO UPPER (Oswego)	—	—
PENNSYLVANIAN SAND (Pennsylvanian)	—	—
TONKAWA	—	—
TOPEKA	—	—

As reported by operators on W-2/G-1 completion filings (RRC wellbore records). Depths are measured depth; names appear as filed. Subsea = reported elevation − measured depth (negative = below sea level; vertical wellbores only). View filings & logs at RRC ↗

Offset Well Tops (nearest 8 wells with tops)

What nearby completed wells reported.

Cross-section

✓ 42-211-35493 NIX 83 UNIT · APACHE CORPORATION

1.0 mi

Brown Dolomite 3,646'Pennsylvanian 8,691'Atoka 10,405'TOPEKA —BROWNSVILLE —Cleveland —Tonkawa —Oswego —Des Moines —Morrow —Douglas —Morrow — +7 more

✓ 42-211-35680 NIX 73/74 A · MEWBOURNE OIL COMPANY

2.0 mi

Brown Dolomite 3,444'Douglas 6,737'Tonkawa 7,406'Kansas City 8,380'Cleveland 8,578'Oswego 9,057'TOPEKA —BROWNSVILLE —Pennsylvanian —Pennsylvanian —

✓ 42-211-35679 NIX 72/71 A · MEWBOURNE OIL COMPANY

2.0 mi

Brown Dolomite 3,744'Douglas 6,737'Tonkawa 7,400'Kansas City 8,383'Cleveland 8,592'Oswego 9,054'Pennsylvanian —Pennsylvanian —BROWNSVILLE —TOPEKA —

✓ 42-211-35547 DAVID CROCKETT 4-13 UNIT · APACHE CORPORATION

3.2 mi

Brown Dolomite 3,853'Pennsylvanian 9,272'Tonkawa —Douglas —Oswego —Pennsylvanian —Kansas City —BROWNSVILLE —Cleveland —TOPEKA —

✓ 42-211-35548 DAVID CROCKETT 4-13 UNIT · APACHE CORPORATION

3.5 mi

Brown Dolomite 3,853'Pennsylvanian 9,272'TOPEKA —BROWNSVILLE —Cleveland —Tonkawa —Kansas City —Oswego —Douglas —Pennsylvanian —

✓ 42-211-35514 URSCHEL 71 · APACHE CORPORATION

5.7 mi

Brown Dolomite 3,853'Pennsylvanian 9,272'BROWNSVILLE —Tonkawa —Douglas —Oswego —Pennsylvanian —Cleveland —Kansas City —TOPEKA —

✓ 42-211-35605 FIELDS · UPLAND RESOURCES LLC

6.2 mi

Brown Dolomite 4,000'Douglas 6,360'Pennsylvanian —Cleveland —Tonkawa —Kansas City —Oswego —Pennsylvanian —BROWNSVILLE —TOPEKA —

✓ 42-211-30663 KELLEY B · QUESTA ENERGY CORPORATION

6.6 mi

Brown Dolomite 3,903'Douglas 6,766'Douglas 6,862'Marmaton 9,239'Atoka 10,484'Morrow 11,000'

Nearest wells within 10 mi (surface locations). Click wells to select them, then open the cross-section to compare tops side by side (max 6 wells per section, including this one).

Perforations (1)

Interval	Type
10,850–14,909 ft	Perforated

Casing (4)

Size	Set Depth	Cement
13.375"	527 ft	775 sx
9.625"	9,185 ft	1,645 sx
7.625"	10,880 ft	195 sx
4.5"	14,985 ft	955 sx

Permit History (2)

#827939 Field Transfer Final Completion

NIX 91 · 16,000 ft

2017-06-26

Spud 2015-10-05

#810223 Drill Final Completion

NIX 91 · 16,000 ft

2015-09-14

Spud 2015-10-05

Applications (2)

#827939 A APACHE CORPORATION

received 2017-06-19

#810223 A APACHE CORPORATION

received 2015-09-10

Records & Logs

2 completion filings on record · 2 with log images at RRC.

W-2/G-1 2017-04-11 log on file

W-2/G-1 2016-05-11 log on file

Completion packets + logs ↗ Wellbore filings ↗

Completion packets open directly (post-2011 filings include attached logs). Log images can't be deep-linked — clicking copies the API for you to paste.

Google Maps → Explorer Map →

Lat 35.981847

Lon -100.430708

Well Details

Well Number: 1H
Max Depth: 16,000 ft
Drill Type: Horizontal
County: HEMPHILL
District: 10
Operator: APACHE CORPORATION
Completed: 2016-01-24

Operator

Name: APC OPER PARTNERSHIP
Location: HOUSTON
P-5 Status: Active (filed 2025-12-03)
Cum Oil (all leases): 615,928,793 bbl
Cum Gas (all leases): 2,702,742,169 mcf
Activities: CSGD/G, CSGD/P, G/PUR, GTHS/G, GTHS/O, OPRS/G, OPRS/O
Total Permits: 9,711