Chesapeake Energy Subsidiary Peake Fuel Solutions Introduces Cost-Saving Diesel Natural Gas (DNG) Conversion Kit for Heavy-Duty

  Chesapeake Energy Subsidiary Peake Fuel Solutions Introduces Cost-Saving
  Diesel Natural Gas (DNG) Conversion Kit for Heavy-Duty Trucks

   Only Conversion Kit EPA Certified for 2010-12 New On-road Diesel Engines

Business Wire

OKLAHOMA CITY -- November 29, 2012

Peake Fuel Solutions, L.L.C., a wholly-owned subsidiary of Chesapeake Energy
Corporation (NYSE:CHK), today announced the development of a new,
transformative diesel natural gas (DNG) conversion kit, a product that will
help heavy-duty truck operators save up to 30% on their fuel costs.

DNG allows trucks to run on a mixture of diesel and up to 70% clean,
affordable, abundant, American natural gas. When compressed natural gas (CNG)
or liquefied natural gas (LNG) fuels are not available, trucks retain the
ability to run on 100% diesel.

“The trucking industry is the backbone of our nation’s economy, and Peake Fuel
Solutions’ DNG technology can help the industry slash its biggest cost —
fuel,” said Kent Wilkinson, Vice President – Natural Gas Ventures, Chesapeake.
“DNG will help accelerate the trucking industry’s shift to a more affordable,
domestic fuel.”

Long-term natural gas prices in the $4-6 per mcf range will translate into CNG
and LNG prices of around $2.00 per diesel gallon equivalent, or about 50%
lower than diesel prices. Assuming a typical DNG blend, truckers would save
approximately $0.20 per mile on their fuel costs.

Peake’s innovative conversion kit has been approved by the U.S. Environmental
Protection Agency (EPA) for a variety of engines. The certificate of
conformity makes it the only dual-fuel natural gas retrofit certified by the
EPA, allowing DNG kits to modify a variety of engines from model years 2010-12
that encompass power ratings from 400 to 600 horsepower.

Peake has begun accepting pre-orders for DNG kits, with widespread commercial
availability expected in the first quarter of 2013. Fleet and truck owners can
email to learn more.

Natural gas is a reliable and cleaner-burning source of fuel for consumers of
gasoline and diesel, and the return on investment for a DNG conversion kit is
typically less than 18 months. Interested DNG customers can calculate their
expected fuel savings and the timeline for investment payback through an
online calculator at

Additionally, Peake offers complete natural gas fueling solutions including
the unique CNG In A Box™ system, a fully integrated CNG fueling supply system
offering plug-and-play simplicity for fleet and retail fueling stations; CNG
fuel management modules; and fuel tank modules in frame-rail and behind-cab

Peake Fuel Solutions advances innovative fuel solutions with products and
services that use clean, affordable, abundant natural gas. A significant focus
of Peake is to increase CNG and LNG infrastructure across the U.S. An
affiliate of Chesapeake Energy Corporation, Peake leverages the expertise of
other Chesapeake affiliates to implement many of its fuel solutions. Further
information is available at

Chesapeake Energy Corporation (NYSE:CHK) is the second-largest producer of
natural gas, a Top 15 producer of oil and natural gas liquids and the most
active driller of new wells in the U.S. Headquartered in Oklahoma City, the
company's operations are focused on discovering and developing unconventional
natural gas and oil fields onshore in the U.S. Chesapeake owns leading
positions in the Eagle Ford, Utica, Granite Wash, Cleveland, Tonkawa,
Mississippi Lime and Niobrara unconventional liquids plays and in the
Marcellus, Haynesville/Bossier and Barnett unconventional natural gas shale
plays. The company also owns substantial marketing and oilfield services
businesses through its subsidiaries Chesapeake Energy Marketing, Inc. and
Chesapeake Oilfield Services, L.L.C. Further information is available at where Chesapeake routinely posts announcements, updates, events,
investor information, presentations and news releases.


Chesapeake Energy Corporation
Bob Jarvis, 405-935-2572
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