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GRATTAN 4B-30H

API 12334362 · Weld County, Colorado · WATTENBERG field

PROW
API
12334362
Operator
BISON IV OPERATING LLC
County
Weld
Field
WATTENBERG
Location
SESE Sec 30 2N 64W (6)
Spudded
2012-02-09
Measured depth
11,408 ft
True vertical depth
6,984 ft

Production

19 monthly filings with Colorado, Nov 2024 to May 2026. Each product is in its own unit and the four are never added.

Cumulative oil
4,862 bbl
Cumulative gas
24,616 MCF
Cumulative water
1,227 bbl
PeriodOil (bbl)Gas (MCF)Water (bbl)Days
May 20262001,6827430
Apr 20263261,39713930
Mar 20265642,12320331
Feb 20262711,2581028
Jan 20263491,4021828
Dec 202595691411
Nov 2025692981814
Oct 20252191,1892231
Sep 20251709846023
Aug 20251631,0012631
Jul 20252181,2156531
Jun 20252141,25035430
May 20252701,3942730
Apr 20253061,4902330
Mar 20253551,5723631
Feb 20252541,3583028
Jan 20253081,5183431
Dec 20242501,4143431
Nov 20242611,3805030

A dash is a period the well filed with no volume for that product.

Wellbore

Colorado files the bottom of each bore of this well, and not the path between.

Bore
Horizontal
Deepest station
11,408 ft
True vertical depth
6,985 ft
Reach from well head (derived)
4,385 ft
Bearing (derived)
345°
Bores
1

The line on the map joins the well head to the bottom of each bore. It is a statement about those two points and not about the path between them, which Colorado does not file. The reach and bearing are derived from two points Colorado filed. Neither is a figure the operator reported.

Location

40.104028, -104.586026

40.10403, -104.58603 · Surface location as filed with Colorado

Every well in Weld County, Colorado

Colorado state record, from CO_wells_WELLS_SHP.parquet. Corpus built 2026-09-11.