42-501-35180

INJECTION

ROBERTS UNIT

YOAKUM County · District 8 · HILCORP ENERGY COMPANY · WASSON

Permits

1

Max Depth

13,640 ft

First Permit

2005-04-06

Latest Activity

2005-04-06

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2006-11-02

Shut-In

Plugged

P-5 Org Status: X

!

EWA / Permit operator mismatch

Scheduling: HILCORP ENERGY COMPANY ≠ Permit: APACHE CORPORATION

Resolved via: productionHILCORP ENERGY COMPANY

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

1993-01

Last Production

2026-07

Injection / Disposal

H-1 Injection Active UIC #000074181 permitted 2008-02-12

Permitted Volume

2,000 bbl/d

Max Pressure

2,175 psi

Injection Interval

4,366–5,517 ft

Injected (12mo)

51,025 bbl

Monthly injected volume (bbl, from H-10 filings through 2025-09-01)

Lease Production

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

Formation Tops (6) Elevation 3,723 ft (DF)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
RUSTLER 2,091 ft+1,632 ft
YATES 2,879 ft+844 ft
SEVEN RIVERS 3,157 ft+566 ft
QUEEN 3,692 ft+31 ft
GRAYBURG 4,105 ft-382 ft
SAN ANDRES 4,366 ft-643 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
4,978–5,110 ftPerforated

Casing (2)

SizeSet DepthCement
8.625"2,212 ft1,120 sx
5.5"5,517 ft750 sx

Permit History (1)

Applications (1)

#560026 A APACHE CORPORATION
received 2005-04-06

Records & Logs

2 completion filings on record · 1 with log images at RRC.

W-2/G-1 2007-12-28 log on file
W-2/G-1 2008-04-10

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 YOAKUM County.

Well Details

Well Number
3534 B
Max Depth
13,640 ft
Drill Type
Vertical
County
YOAKUM
District
8
Completed
2006-11-02

Operator

Location
HOUSTON
P-5 Status
X (filed 2026-03-27)
Cum Oil (all leases)
75,699,281 bbl
Cum Gas (all leases)
1,779,939,645 mcf
Activities
CSGD/G, CSGD/P, G/PUR, GTHS/C, GTHS/G, GTHS/O, OPRS/G, OPRS/O
Total Permits
3,428