RILL Field Activity and Well Summary

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Total wells

12
RILL field

Drill activity

—
drill dates not in our copy of this source

The RILL oil & gas field in Colorado contains 12 wells on file.

Top operators: DAWSON OIL CORPORATION, PATTERSON GAS & OIL CO, and others.

Most recent well: HALLER, operated by DAWSON OIL CORPORATION — last updated March 2026.

RILL field coverage

Counties the RILL 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 CountyLarimer CountyLake CountyRio Grande CountyGilpin CountyYuma CountyJackson CountyKit Carson CountyClear Creek CountyLogan CountyWashington — 12 wellsDouglas CountyConejos CountyEl Paso CountyKiowa CountyTeller CountyGunnison CountyBaca CountyElbert CountyMesa CountyDolores CountyArapahoe CountyLas Animas CountyGrand County
< 1212+12+12+12+

Recent wells

Well Name County Last activity Updates Operator API
HALLER Washington 2026-03-18 DAWSON OIL CORPORATION 05-121-05247
HARBERT Washington 2026-03-18 PATTERSON GAS & OIL CO 05-121-05216
HALLER Washington 2026-03-18 DAWSON OIL CORPORATION 05-121-05218
ARTHUR L HALLER Washington 2026-03-18 PAN AMERICAN PETROLEUM CORP 05-121-05227
HARBERT Washington 2026-03-18 DAWSON OIL CORPORATION 05-121-05207
SCHREIBER Washington 2026-03-18 STUARCO OIL CO INC 05-121-08019
CRISWELL Washington 2026-03-18 PATTERSON GAS & OIL CO 05-121-05193
CRISWELL Washington 1999-01-01 ENERGY SEARCH CO ADBA ENERGY SEARCH CO INC 05-121-09558
HARBERT-GRAY Washington 1984-05-18 NYLUND* J. W. 05-121-10049
HALLER Washington 1982-12-18 THERMATRON INC 05-121-09819

Top Operators in the RILL field by total wells

DAWSON OIL CORPORATION3PATTERSON GAS & OIL CO2FERRIS* W W1HUGHES* C W1NYLUND* J. W.1PAN AMERICAN PETROLEUM CORP1STUARCO OIL CO INC1THERMATRON INC1ENERGY SEARCH CO ADBA ENERGY SEARCH CO INC1

Operators: Dawson Oil Corporation, Patterson Gas & Oil Co, Ferris* W W, Hughes* C W, Nylund* J. W., Pan American Petroleum Corp, Stuarco Oil Co Inc, Thermatron Inc, Energy Search Co Adba Energy Search Co Inc.

Counties Intersected by the RILL field

Washington12
Washington

Other Major Fields in Colorado most active by total wells

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