GRAIL Field Activity and Well Summary

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Total wells

22
GRAIL field

Drill activity

—
drill dates not in our copy of this source

The GRAIL oil & gas field in Colorado contains 22 wells on file.

Top operators: SUNSET HILL OIL CO INC, UNKNOWN, and others.

Most recent well: COPELAND, operated by SUNSET HILL OIL CO INC — last updated March 2026.

GRAIL field coverage

Counties the GRAIL field intersects.

Saguache CountySedgwick CountyCheyenne CountyCuster CountyLa Plata CountySan Juan CountyPitkin CountyPark CountyAlamosa CountyProwers CountyMoffat CountyJefferson CountySummit CountyPueblo CountyBoulder CountyDenver CountyMontrose CountyEagle CountySan Miguel CountyCostilla CountyBroomfield CountyChaffee CountyCrowley CountyFremont CountyHuerfano CountyDelta CountyGarfield CountyRio Blanco CountyMorgan CountyLincoln CountyMontezuma CountyAdams CountyMineral CountyOtero CountyPhillips CountyOuray CountyBent CountyArchuleta CountyRoutt CountyHinsdale CountyWeld — 22 wellsLarimer CountyLake CountyRio Grande CountyGilpin CountyYuma CountyJackson CountyKit Carson CountyClear Creek CountyLogan CountyWashington CountyDouglas CountyConejos CountyEl Paso CountyKiowa CountyTeller CountyGunnison CountyBaca CountyElbert CountyMesa CountyDolores CountyArapahoe CountyLas Animas CountyGrand County
< 2222+22+22+22+

Recent wells

Well Name County Last activity Updates Operator API
COPELAND Weld 2026-03-18 SUNSET HILL OIL CO INC 05-123-10288
BIGGS Weld 2026-03-18 MURFIN DRILLING COMPANY INC 05-123-05341
DOLL Weld 2026-03-18 UNKNOWN 05-123-09994
DOLL ESTATE Weld 2026-03-18 SUNSET HILL OIL CO INC 05-123-10018
DOLL ESTATE Weld 2026-03-18 SUNSET HILL OIL CO INC 05-123-10287
ENGSTROM Weld 2026-03-18 DIVERSIFIED OPERATING CORPORATION 05-123-10570
BIGGS Weld 2026-03-18 HABCO, INC 05-123-10291
DOLL A Weld 2026-03-18 UNKNOWN 05-123-05344
DOLL Weld 2026-03-18 SKAER ENTERPRISES 05-123-05360
CROSBY-KLINE Weld 2026-03-18 UNKNOWN 05-123-09628

Top Operators in the GRAIL field by total wells

SUNSET HILL OIL CO INC5UNKNOWN5DIVERSIFIED OPERATING CORPORATION3HABCO, INC3CENTENNIAL OIL CO2SKAER ENTERPRISES1STUARCO OIL CO INC1MURFIN DRILLING COMPANY INC1DOLL* GEORGE A1

Operators: Sunset Hill Oil Co Inc, Unknown, Diversified Operating Corporation, Habco, Inc, Centennial Oil Co, Skaer Enterprises, Stuarco Oil Co Inc, Murfin Drilling Company Inc, Doll* George A.

Counties Intersected by the GRAIL field

Weld22
Weld

Other Major Fields in Colorado most active by total wells

Compare the GRAIL field against the other busiest oil and gas fields in Colorado: