Connect With Us:
Marathon's YouTube Channel
Marathon's Flickr Account
Marathon's LinkedIn Page
Marathon's Twitter Feed
MRO on StockTwits
Marathon's RSS Feed
Contacts
 
Smaller Type
Default Size Type
Larger Type
Print This Page
Email This Page

Wyoming Water Conservation Strategy

SR-2009LOV_InlineImage-EnvironmentalStewardship-WaterConservationMarathon produces approximately 2 million barrels of water per day from our conventional oil and coalbed methane (CBM) operations in Wyoming. We continually look for new ways to conserve water and use produced water to mitigate drought conditions, enhance the environment and benefit agriculture.

While a small portion of our produced water is directed to disposal wells targeting deep formations, a majority of this water is suitable for reuse in agriculture and for livestock or other activities. Approximately half of the produced water is re-injected as part of our water flood reservoir management strategy, a beneficial use which conserves groundwater.

Benefits of Produced Water Discharge

Around 500,000 barrels per day of produced water are discharged to the surface, which benefits agriculture and the ecology of the arid Wyoming landscape. This volume is enough to fill about 32 Olympic-sized swimming pools daily. Benefits of surface discharge of this produced water include:

  • Wetlands and riparian habitat creation
  • Wildlife and livestock grazing and watering
  • Pasture and cropland irrigation
  • Groundwater recharge
  • Soil stabilization along streambanks

These benefits have been especially important during the last decade of persistent drought in Wyoming.

From the point of discharge, all produced water is suitable for livestock use and many discharges are acceptable for irrigation. Produced water irrigation supplements the productivity of thousands of acres of pasture and crop land in Wyoming's Big Horn, Wind River and Powder River basins. Based on the current value of irrigation water in the region, the potential annual benefit of Marathon's produced water to the agricultural community is approximately $1.4 million.

Higher Agricultural Productivity

In the Powder River Basin, some regulated produced water is directed to subsurface drip irrigation (SDI) systems which are designed to operate year-round to:

  • Minimize potential impacts to soil productivity
  • Maximize crop production
  • Recharge shallow aquifers

A portion of one SDI system was permitted and constructed on a privately owned ranch and elk preserve. It enhances elk habitat without harming crops and soils and provides Marathon a means of beneficially using CBM produced water.

Valuable infrastructure including water wells, reservoirs and water distribution systems constructed as part of Marathon's CBM development have increased agricultural productivity.