Positioned forProfitable GrowthSTACK/SCOOP,Oklahoma

About the PlaySTACK/SCOOP

With a history in Oklahoma that dates back more than 100 years,today our primary focus in Oklahoma has been delineation and leasehold protection in the Meramec play in the STACK and delineation of the Woodford and Springer plays in the SCOOP,as we move toward infill development.

We hold net acreage with rights to the Woodford,Springer,Meramec,Osage,Oswego,Granite Wash and other Pennsylvanian and Mississippian plays,with a majority of this in the SCOOP and STACK.

Latest Activity4Q 2018

Our Oklahoma production averaged 67,000 net boed during fourth quarter 2018,up 4% from the year-ago quarter,with only 12 gross Company-operated wells brought to sales.In the SCOOP Woodford,seven infill wells on the 3R pad (eight wells per section spacing) achieved an average 30-day IP rate of 2,600 boed (69% liquids).On the same pad, we also brought online a Springer delineation well that achieved a 30-day IP rate of 1,825 boed (81% oil).

67,000 Net BOED average production in 4Q 2018

12 gross Company-operated wells to sales in 4Q 2018

7 infill wells on 3R pad (8 wells/section spacing) averaged 30-day IP rates of 2,600 boed in 4Q 2018

predictability and competitive returns

55 - 60

expected gross operated wells to sales in 2018

development focused on overpressured stack & scoop;95% pad drilling

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Two Marathon Oil employees monitoring seismicity in the SCOOP/STACK area of Oklahoma

Understanding the IssueSeismicity

In late 2016,Oklahoma regulators issued new guidelines for oil and gas operators to manage risks of potential anomalous seismicity in the SCOOP/STACK area of the state.


Marathon Oil hydraulic fracturing facility

Using Best PracticesHydraulic Fracturing

In combination with advanced horizontal drilling technology,fracking makes it possible to develop oil and gas resources that were previously inaccessible.


Challenging the Status QuoOklahoma

Process Engineer Sarah DuConge highlights how it takes teamwork,technology and good old-fashioned engineering to sustain base production.

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