HALLIBURTON

S HOUSTON CENTER  ̄ 1401 McKINNEY * HOUSTON, TX 77010

PHONE 713.759.2601

Press Release

FOR IMMEDIATE RELEASE

April 18, 2008

CONTACT: Zelma Branch

Public Relations, Halliburton

(713) 759-2601

zelma.branch@halliburton.com

HALLIBURTON DEVELOPS NEW STIMULATION METHODS TO REDUCE

PRODUCTION COSTS AND REQUIREMENT FOR FRESH WATER

HOUSTON - Halliburton (NYSE: HAL) has developed four complementary fracture

stimulation technologies to help reduce operators’ production cost per barrel of oil equivalent

(BOg) and to reduce the use of fresh water in oil field operations. These innovations are

OmegaFracTM fluid, MonoPropTM proppant, the ADPTM (advanced dry polymer) blender and

the MimicTM fluid measuring device.

"With these technologies, Halliburton offers the industry greatly improved production

recoveries compared to those achieved with conventional fracturing techniques," said David

King, president, Halliburton’s Completion and Production Division. "While developing these

solutions, we challenged our scientists to minimize demands on the world’s finite fresh water

resources, supporting our efforts in environmental sustainability."

OmegaFrac fluid is based on a proprietary biopolymer that provides easy clean-up to

maximize retained conductivity. It is the first fracturing fluid to practically and economically

blend with field-produced brine water and effectively suspend and deliver proppant into the

fracture. Virtually all fluids used in fracturing treatments today are blended from fresh water

and natural polymers to produce the complex fluid required to deliver the proppant; however,

OmegaFrac fluid eliminates the need to use potable water without compromising the necessary

fluid qualities.

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Halliburton’s new fracturing solution represents a breakthrough by consistently

achieving a partial monolayer, or the expansive distribution of propping particulates throughout

the fracture.

Halliburton’s MonoProp proppant, carried optimally with OmegaFrac fluid, offers an

improvement over existing proppants by achieving a partial monolayer of deformable polymer

alloy particles to maintain adequate fracture width without creating flow impediments. This

allows unrestricted fluid flow of hydrocarbon from the formation through the fracture to the

wellbore.

Two more innovations enable Halliburton to vary fluid characteristics according to the

fracturing plan or in response to changing treatment conditions. On the environmental front, the

ADP blender mixes Halliburton fracturing fluids from a dry-polymer base rather than a

hydrocarbon-based concentrate. The other innovation, the Mimic proppant transport measuring

device, directly measures the ability of the fracturing fluid to transport the propping agent

under specific downhole conditions. Until now, this measurement could only be inferred from

the viscosity of the fluid.

"A partial monolayer fracture treatment was formerly only a theoretical achievement,"

said Ron Hyden, Stimulation group manager, Halliburton. "When we apply these technologies

in tight gas reservoirs, we are generally seeing cumulative production that is 25 percent better

than conventionally fractured wells. And, operators tell us that reducing the environmental

impact - especially eliminating the need for relying on fresh water for fracturing treatments - is

as attractive to them as the decreased production costs."

Founded in 1919, Halliburton is one of the world’s largest providers of products and

services to the energy industry. With more than 50,000 employees in approximately 70

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countries, the company serves the upstream oil and gas industry throughout the life cycle of the

reservoir - from locating hydrocarbons and managing geological data, to drilling and formation

evaluation, well construction and completion, and optimizing production through the life of the

field. Visit the company’s Web site at www.halliburton.com.

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