Eco-Stim Energy Solutions Signs Field Management Diagnostics Contract

HOUSTON, TX and NEUQUEN CITY, ARGENTINA--(Marketwired - Mar 17, 2016) - Eco-Stim Energy Solutions, Inc. (NASDAQ: ESES) ("EcoStim" or the "Company") announced today that it has signed a contract with a large multi-national exploration and production company operating in Argentina to conduct a downhole diagnostics evaluation using distributed fiber optic measurements. This contract involves the deployment of fiber optic sensors into two unconventional wells and the subsequent recording of acoustic and temperature measurements from each well to better understand the dynamic production characteristics. This data should allow the operator to enhance its understanding of the reservoir, rock properties and production characteristics, and improve the overall efficiency of resource development.

J. Chris Boswell, the company's Chief Executive Officer, stated: "We are pleased to secure this work and view this operator as a key player in the development of the Vaca Muerta over the next several years. Our technology based on predictive techniques which can be confirmed through advanced diagnostic tools is primarily geared for the unconventional reservoir. The current high cost of completing wells in Argentina make this an ideal market for this type of technology. The information gathered and interpreted from the downhole diagnostics can significantly enhance our customer's understanding of the reservoir and improve future well performance. We expect to do more of this type of work as the Vaca Muerta field development accelerates and we expect these types of technologies can play an important role in driving efficiency, productivity and reducing completion costs going forward."

About the Company

Eco-Stim Energy Solutions is an environmentally focused oilfield service and technology company providing well stimulation and completion services and proprietary field management technologies and to oil and gas producers drilling in the rapidly expanding international unconventional shale market. EcoStim's proprietary methodology and technology offers the potential to decrease the number of stages stimulated in shale plays through a unique process that predicts high probability production zones while confirming those production zones using the latest generation down-hole diagnostic tools. In addition, EcoStim offers its clients completion techniques that can dramatically reduce horsepower requirements, emissions, surface footprint and water usage. EcoStim seeks to deliver well completion services with better technology, better ecology and significantly improved economics for unconventional oil and gas producers worldwide.

Forward-Looking Statements

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