42-329-41957

PRODUCING Horizontal

MIDKIFF 1U

MIDLAND County · District 8 · PIONEER NATURAL RES. USA INC. · SPRABERRY (TREND AREA) R 40 EXC

Permits

1

Max Depth

10,500 ft

First Permit

2017-10-04

Latest Activity

2017-10-04

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2018-07-31

Shut-In

Plugged

P-5 Org Status: Active

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2018-07

Last Production

2026-07

Lease Production

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

Formation Tops (10) Elevation 2,724 ft (KB)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
SANTA ROSA 750 ft+1,974 ft
YATES 2,472 ft+252 ft
SEVEN RIVERS 2,760 ft-36 ft
QUEEN 3,461 ft-737 ft
GRAYBURG 3,897 ft-1,173 ft
SAN ANDRES - HIGH FLOWS, H2S, CO (San Andres)4,048 ft-1,324 ft
CLEARFORK (Clear Fork)6,239 ft-3,515 ft
SPRABERRY 7,120 ft-4,396 ft
SPRABERRY UPPER-DEAN (Spraberry)8,536 ft-5,812 ft
GLORIETA

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
42-329-41940 MIDKIFF 1T · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 755'Yates 2,472'Seven Rivers 2,780'Queen 3,469'Grayburg 3,983'San Andres 4,119'Clear Fork 6,244'Spraberry 7,130'Spraberry 8,534'Glorieta
42-329-42398 MIDKIFF 1M · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 1,209'Yates 2,472'Seven Rivers 2,795'Queen 3,483'Grayburg 3,892'San Andres 3,994'Clear Fork 6,250'Spraberry 7,137'Spraberry 8,542'Glorieta
42-329-41833 MIDKIFF E1U · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 752'Rustler 1,567'Yates 2,473'Seven Rivers 2,803'Queen 3,510'Grayburg 3,908'San Andres 5,386'Clear Fork 6,239'Spraberry 7,143'Glorieta
42-329-42399 MIDKIFF 1N · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 1,209'Yates 2,468'Seven Rivers 2,788'Queen 3,476'Grayburg 3,880'San Andres 3,985'Clear Fork 6,246'Spraberry 7,129'Spraberry 8,538'Glorieta
42-329-41831 MIDKIFF E1T · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 752'Rustler 1,563'Yates 2,480'Seven Rivers 2,801'Queen 3,497'Grayburg 3,881'San Andres 3,992'Clear Fork 6,266'Spraberry 7,142'Glorieta
42-329-41829 MIDKIFF E1O · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 752'Rustler 1,566'Yates 2,459'Seven Rivers 2,810'Queen 3,508'Grayburg 3,881'San Andres 4,023'Clear Fork 6,247'Spraberry 7,150'Glorieta
42-329-41830 MIDKIFF E1S · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 1,180'Rustler 1,576'Yates 2,471'Seven Rivers 2,802'Queen 3,509'Grayburg 3,892'San Andres 5,414'Clear Fork 6,254'Spraberry 7,163'Glorieta
42-329-42397 MIDKIFF 1O · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 1,209'Yates 2,459'Seven Rivers 2,789'Queen 3,484'Grayburg 3,901'San Andres 4,019'Clear Fork 6,258'Spraberry 7,143'Spraberry 8,547'Glorieta

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)

IntervalType
9,477–19,499 ftPerforated

Casing (3)

SizeSet DepthCement
13.375"1,447 ft1,425 sx
9.625"6,390 ft1,215 sx
5.5"19,528 ft945 sx

Permit History (1)

Applications (1)

#830271 A PIONEER NATURAL RES. USA, INC.
received 2017-08-24

Records & Logs

1 completion filing on record · 1 with log images at RRC.

W-2/G-1 2018-10-31 log on file

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.

Lat 31.666145
Lon -101.836567

Well Details

Well Number
21H
Max Depth
10,500 ft
Drill Type
Horizontal
County
MIDLAND
District
8
Completed
2018-07-31

Operator

Location
Y SPRING
P-5 Status
Active (filed 2025-08-01)
Cum Oil (all leases)
1,771,882,421 bbl
Cum Gas (all leases)
1,763,727,021 mcf
Activities
CSGD/G, CSGD/P, G/PUR, GTHS/G, GTHS/O, OPRS/G, OPRS/O
Total Permits
15,401