42-329-41658

PRODUCING Horizontal

RIO ROJO 27-30 UNIT 1

MIDLAND County · District 8 · DIAMONDBACK E&P LLC · SPRABERRY (TREND AREA)

Permits

1

Max Depth

11,000 ft

First Permit

2017-04-24

Latest Activity

2017-04-24

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2017-11-02

Shut-In

Plugged

P-5 Org Status: X

!

EWA / Permit operator mismatch

Scheduling: DIAMONDBACK E&P LLC ≠ Permit: ENDEAVOR ENERGY RESOURCES L.P.

Resolved via: productionDIAMONDBACK E&P LLC

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2017-11

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 2,755 ft (GL)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
SANTA ROSA 1,000 ft+1,755 ft
YATES 2,694 ft+61 ft
SEVEN RIVERS 3,005 ft-250 ft
QUEEN 3,806 ft-1,051 ft
GRAYBURG 4,529 ft-1,774 ft
SAN ANDRES - HIGH FLOWS, H2S, CO (San Andres)4,769 ft-2,014 ft
GLORIETA 5,847 ft-3,092 ft
CLEARFORK (Clear Fork)6,811 ft-4,056 ft
SPRABERRY 8,290 ft-5,535 ft
SPRABERRY UPPER-DEAN (Spraberry)9,093 ft-6,338 ft

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 ↗

Perforations (1)

IntervalType
9,890–17,511 ftPerforated

Casing (3)

SizeSet DepthCement
13.375"1,568 ft1,365 sx
9.625"8,805 ft920 sx
5.5"17,635 ft2,385 sx

Permit History (1)

Applications (1)

#825495 A ENDEAVOR ENERGY RESOURCES L.P.
received 2017-04-13

Records & Logs

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

W-2/G-1 2018-12-27 log on file
W-2/G-1 2018-01-31 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.

No GPS coordinates yet

Coordinates come from the RRC GIS backfill and usually appear within days of permit issuance. Located in MIDLAND County.

Well Details

Well Number
221
Max Depth
11,000 ft
Drill Type
Horizontal
County
MIDLAND
District
8
Completed
2017-11-02

Operator

Location
MIDLAND
P-5 Status
X (filed 2026-05-04)
Cum Oil (all leases)
986,290,193 bbl
Cum Gas (all leases)
41,995,553 mcf
Activities
GTHS/C, GTHS/O, OPRS/G, OPRS/O
Total Permits
4,977