ProPetro Holding ^{Priced, NYSE: PUMP}

We are a growth-oriented, Midland, Texas-based oilfield services company providing hydraulic fracturing and other complementary services to leading upstream oil and gas companies engaged in the exploration and production, or E&P, of North American unconventional oil and natural gas resources. Our operations are primarily focused in the Permian Basin, where we have cultivated longstanding customer relationships with some of the region's most active and well-capitalized E&P companies, including Callon Petroleum, Diamondback Energy, Parsley Energy, Pioneer Natural Resources, Surge Energy and XTO Energy. For the year ended December 31, 2016, no single customer represented greater than 20% of our revenue. The Permian Basin is widely regarded as the most prolific oil-producing area in the United States, and we believe we are currently the largest private provider of hydraulic fracturing services in the region by hydraulic horsepower, or HHP, with an aggregate deployed capacity of 420,000 HHP. Our fleet, which consists of 10 hydraulic fracturing units, has been designed to handle the highest intensity, most complex hydraulic fracturing jobs, and has been 100% utilized since September 2016. We have purchased two additional hydraulic fracturing units, which are scheduled for delivery and deployment to dedicated customers in April and June 2017, respectively. These units will provide us with an additional 90,000 HHP, bringing our total capacity to 510,000 HHP. Additionally, we expect to use the proceeds from this offering to purchase two additional units that will be deployed in 2017 to meet specific customer requests, giving us an additional 90,000 HHP, or 600,000 HHP in the aggregate, once all units have been received.