UNNAMED Field Activity and Well Summary

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Total wells

352
UNNAMED field

Drill activity

—
drill dates not in our copy of this source

The UNNAMED oil & gas field in Colorado contains 352 wells on file.

Top operators: UNITED STATES EXPLORATION INC, ROSEWOOD RESOURCES INC, and others.

Most recent well: SWANSON, operated by HACKATHORN DRILLING CO — last updated March 2026.

UNNAMED field coverage

Counties the UNNAMED 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 — 20 wellsRio Blanco — 43 wellsMorgan CountyLincoln CountyMontezuma — 10 wellsAdams CountyMineral CountyOtero CountyPhillips — 40 wellsOuray CountyBent CountyArchuleta CountyRoutt CountyHinsdale CountyWeld — 60 wellsLarimer CountyLake CountyRio Grande CountyGilpin CountyYuma — 37 wellsJackson — 11 wellsKit Carson CountyClear Creek CountyLogan — 16 wellsWashington — 14 wellsDouglas CountyConejos CountyEl Paso CountyKiowa CountyTeller CountyGunnison CountyBaca CountyElbert CountyMesa — 16 wellsDolores CountyArapahoe CountyLas Animas CountyGrand County
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Recent wells

Well Name County Last activity Updates Operator API
SWANSON Ouray 2026-03-18 HACKATHORN DRILLING CO 05-091-60002
CERVI Weld 2026-03-18 UNITED STATES EXPLORATION INC 05-123-21198
CERVI Weld 2026-03-18 UNITED STATES EXPLORATION INC 05-123-21242
FEDERAL Rio Blanco 2026-03-18 UNKNOWN 05-103-08413
FEDERAL C 29-4-103 Rio Blanco 2026-03-18 COSEKA RESOURCES (USA) LTD 05-103-08846
HIAWATHA STATE Moffat 2026-03-18 GADECO LLC 05-081-07315
HALEY B-USA Mesa 2026-03-18 TENNECO OIL CO 05-077-08433
SCRITSMIER Weld 2026-03-18 CALLON PETROLEUM CO 05-123-11704
COTTONWOOD CREEK FEDERAL Rio Blanco 2026-03-18 NORTHWEST EXPLORATION CO 05-103-08388
COTTONWOOD CREEK FEDERAL Rio Blanco 2026-03-18 NORTHWEST EXPLORATION CO 05-103-08390

Top Operators in the UNNAMED field by total wells

UNITED STATES EXPLORATION INC25ROSEWOOD RESOURCES INC14WME YATES LLC13PCR OPERATING LLC13DOME PETROLEUM CORP10NOBLE ENERGY INC10MITCHELL ENERGY CORPORATION10NORTHWEST EXPLORATION CO10BLACK RAVEN ENERGY INC9COSEKA RESOURCES (USA) LTD8

Operators: United States Exploration Inc, Rosewood Resources Inc, Wme Yates Llc, Pcr Operating Llc, Dome Petroleum Corp, Noble Energy Inc, Mitchell Energy Corporation, Northwest Exploration Co, Black Raven Energy Inc, Coseka Resources (Usa) Ltd.

Counties Intersected by the UNNAMED field

Weld60Rio Blanco43Phillips40Yuma37Garfield20Mesa16Logan16Washington14Jackson11Montezuma10
Weld
Rio Blanco
Phillips
Yuma
Garfield
Mesa
Logan
Washington
Jackson
Montezuma

Other Major Fields in Colorado most active by total wells

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