SAND WASH HORIZONTAL NIOBRARA Field Activity and Well Summary

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Total wells

33
SAND WASH HORIZONTAL NIOBRARA field

Drill activity

—
drill dates not in our copy of this source

The SAND WASH HORIZONTAL NIOBRARA oil & gas field in Colorado contains 33 wells on file.

Top operators: GRMR OIL & GAS LLC, BEEMAN OIL & GAS INC, and others.

Most recent well: Bert Federal, operated by GRMR OIL & GAS LLC — last updated March 2026.

SAND WASH HORIZONTAL NIOBRARA field coverage

Counties the SAND WASH HORIZONTAL NIOBRARA field intersects.

Saguache CountySedgwick CountyCheyenne CountyCuster CountyLa Plata CountySan Juan CountyPitkin CountyPark CountyAlamosa CountyProwers CountyMoffat — 31 wellsJefferson 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 — 2 wellsHinsdale CountyWeld CountyLarimer 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
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Recent wells

Well Name County Last activity Updates Operator API
Bert Federal Moffat 2026-03-18 GRMR OIL & GAS LLC 05-081-07833
Three Bars Federal Moffat 2026-03-18 GRMR OIL & GAS LLC 05-081-07835
Hollywood Gold Moffat 2026-03-18 GRMR OIL & GAS LLC 05-081-07827
Old Sorrel Federal Moffat 2026-03-18 GRMR OIL & GAS LLC 05-081-07831
WPU-36-1V Moffat 2015-09-23 PETROLEUM RESOURCE MANAGEMENT CORP 05-081-07799
DIAMOND T SHEEP 7-92 Moffat 2015-07-30 BEEMAN OIL & GAS INC 05-081-07817
WELKER 6-92 Moffat 2014-10-09 BEEMAN OIL & GAS INC 05-081-07811
DIAMOND T SHEEP 7-92 Moffat 2014-09-03 BEEMAN OIL & GAS INC 05-081-07804
Bulldog Moffat 2013-08-28 BEEMAN OIL & GAS INC 05-081-07780
Bulldog Moffat 2013-06-30 BEEMAN OIL & GAS INC 05-081-07737

Top Operators in the SAND WASH HORIZONTAL NIOBRARA field by total wells

GRMR OIL & GAS LLC20BEEMAN OIL & GAS INC8RICHARDS/BELNAP INTERESTS, INC1ROBERT L BAYLESS PRODUCER LLC1THINK OIL INC1PETROLEUM RESOURCE MANAGEMENT CORP1EPHPHATHA LLC1

Operators: Grmr Oil & Gas Llc, Beeman Oil & Gas Inc, Richards/belnap Interests, Inc, Robert L Bayless Producer Llc, Think Oil Inc, Petroleum Resource Management Corp, Ephphatha Llc.

Counties Intersected by the SAND WASH HORIZONTAL NIOBRARA field

Moffat31Routt2
Moffat
Routt

Other Major Fields in Colorado most active by total wells

Compare the SAND WASH HORIZONTAL NIOBRARA field against the other busiest oil and gas fields in Colorado: