Michael J. Stover Appointed Vice President of Operations Services for Marathon Oil Corporation

Michael J. Stover Appointed Vice President of Operations Services for Marathon
Oil Corporation

HOUSTON, Jan. 29, 2013 (GLOBE NEWSWIRE) -- Marathon Oil Corporation (NYSE:
MRO) announced today that Michael J. Stover, currently manager of the
Company's mid-continent production operations, has been appointed to the newly
established position of vice president, Operations Services effective Feb. 1,
2013. In this role, Stover willhave oversight responsibility for Marathon
Oil's Upstream Development, Technology, Technical Excellence, Global
Procurement, Land and Commercial Services, and Drilling and Completions
activities. Stover will be based in Houston and report to Marathon Oil
Corporation chairman, president and CEO Clarence P. Cazalot Jr.

"Establishing this new position and capturing the increased organizational
alignment associated with it is consistent with our ongoing drive to achieve
greater efficiencies throughout Marathon Oil," said Cazalot. "Mike possesses a
strong blend of operations, technical and planning experience and expertise
that will play an important role in our ability to further optimize the
contributions of these key services to our continued success."

Stover earned a Bachelor of Science degree in petroleum and natural gas
engineering from Pennsylvania State University in 1986. He joined Marathon
Oil that same year, initially as a roustabout, followed by operations and
reservoir engineering assignments for the Yates Field located in West Texas.
In 1991, he transferred to the Company's international group in Houston and
was responsible for reservoir and economic studies for fields in Ireland,
Tunisia, and Norway. From 1995 thru 2000, Stover was located in Anchorage,
Alaska, where he worked both development and exploration projects associated
with Marathon Oil's operations on the Kenai Peninsula.

In 2000, he joined Marathon Oil's Corporate Strategic Planning group in
Houston. In this assignment, his responsibilities included business planning
and corporate portfolio modeling to support the reorganization of USX
Corporation that lead to the establishment of Marathon Oil Corporation as a
standalone company.

Following that assignment Stover relocated to Aberdeen, Scotland, where he
held the position of European Business Unit Subsurface and Business Planning
Manager. In 2005, he relocated to Houston where assumed the role of East
Texas/North Louisiana Asset Manager. In 2006, his area of responsibility was
expanded to include Marathon Oil's Oklahoma oil and gas properties.

In 2009, he assumed the position of Director of Central Evaluation and
Financial Planning. In this role, Stover was responsible for providing
financial and portfolio analysis across the business enterprise. In late 2011,
he assumed his current role of Mid-Continent Asset Manager with responsibility
for Marathon Oil's assets and operations in Oklahoma, East Texas, North
Louisiana and Colorado.

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