42-501-35916

INJECTION

ROBERTS UNIT

YOAKUM County · District 8 · HILCORP ENERGY COMPANY · WASSON

Permits

1

Max Depth

5,500 ft

First Permit

2012-02-06

Latest Activity

2012-02-06

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2013-01-31

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 #000104692 permitted 2012-11-14

Permitted Volume

2,500 bbl/d

Max Pressure

2,200 psi

Injection Interval

4,400–5,350 ft

Injected (12mo)

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 3,623 ft (GL)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
GRAYBURG 4,188 ft-565 ft
SAN ANDRES 4,442 ft-819 ft
PI_MARKER4,959 ft-1,336 ft
1ST_POROSITY5,014 ft-1,391 ft
TOP_SA_MAIN_PAY5,063 ft-1,440 ft
2ND_POROSITY5,175 ft-1,552 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
5,072–5,204 ftPerforated

Casing (2)

SizeSet DepthCement
8.625"2,194 ft1,000 sx
5.5"5,471 ft900 sx

Permit History (1)

Applications (1)

#732515 A APACHE CORPORATION
received 2012-01-26

Records & Logs

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

W-2/G-1 2013-02-13 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 YOAKUM County.

Well Details

Well Number
2731RW
Max Depth
5,500 ft
Drill Type
Vertical
County
YOAKUM
District
8
Completed
2013-01-31

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
3,429