MILDRED Field Activity and Well Summary

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Total wells

112
MILDRED field

Drill activity

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drill dates not in our copy of this source

The MILDRED oil & gas field in Colorado contains 112 wells on file.

Top operators: OWN RESOURCES OPERATING LLC, J W OPERATING COMPANY, and others.

Most recent well: Sandhill State, operated by MCELVAIN ENERGY INC — last updated March 2026.

MILDRED field coverage

Counties the MILDRED 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 — 112 wellsJackson CountyKit Carson CountyClear Creek CountyLogan CountyWashington CountyDouglas CountyConejos CountyEl Paso CountyKiowa CountyTeller CountyGunnison CountyBaca CountyElbert CountyMesa CountyDolores CountyArapahoe CountyLas Animas CountyGrand County
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Recent wells

Well Name County Last activity Updates Operator API
Sandhill State Yuma 2026-03-18 MCELVAIN ENERGY INC 05-125-11845
KELLER CATTLE Yuma 2026-03-18 BERRY PETROLEUM COMPANY LLC 05-125-11107
Sandhill State Yuma 2026-03-18 MCELVAIN ENERGY INC 05-125-11853
Sandhill State Yuma 2026-03-18 MCELVAIN ENERGY INC 05-125-11847
MCDONALD Yuma 2026-03-18 ROSEWOOD RESOURCES INC 05-125-11338
Sandhill State Yuma 2010-09-16 MCELVAIN ENERGY INC 05-125-11843
Johnson Prescott Yuma 2010-08-12 OWN RESOURCES OPERATING LLC 05-125-11653
Johnson Prescott Yuma 2010-08-02 OWN RESOURCES OPERATING LLC 05-125-11655
Johnson Prescott Yuma 2010-07-23 OWN RESOURCES OPERATING LLC 05-125-11654
KELLER FEDERAL Yuma 2010-07-19 OWN RESOURCES OPERATING LLC 05-125-11372

Top Operators in the MILDRED field by total wells

OWN RESOURCES OPERATING LLC91J W OPERATING COMPANY11MCELVAIN ENERGY INC4ROSEWOOD RESOURCES INC2MOUNTAIN PETROLEUM CORP1KANSAS-NEBRASKA NATURAL GAS CO1BERRY PETROLEUM COMPANY LLC1PUCKETT-WARREN OIL CO1

Operators: Own Resources Operating Llc, J W Operating Company, Mcelvain Energy Inc, Rosewood Resources Inc, Mountain Petroleum Corp, Kansas-Nebraska Natural Gas Co, Berry Petroleum Company Llc, Puckett-Warren Oil Co.

Counties Intersected by the MILDRED field

Yuma112
Yuma

Other Major Fields in Colorado most active by total wells

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