Premium Energy Group (PEG)

In August 2016, Premium Energy Group (PEG) was acquired by Downing, an SEF Energy Company. Downing and SEF Energy will continue PEG’s commitment to service, safety, and quality in every aspect of our business. Our goal is to be a trusted partner, providing the products and services required to successfully complete each customer’s unique project.

Learn more about Downing and the SEF Energy family of companies below.

SEF Energy

SEF Energy is a private holding company with a portfolio of U.S.-based oilfield manufacturing assets that are manufacturing-oriented and technology-driven. All SEF Energy family companies are driven to innovate, continuously improve and to be the best at what they do. Through methodical capital allocation, asset management and strategic leadership, we believe manufacturing can still be done competitively in the United States.

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Since 1980, Downing has delivered a comprehensive portfolio of API Spec 6A wellhead products including US-manufactured wellheads, frac valves and production valves.  Servicing all US basins, Downing adheres to the highest standards of safety and quality throughout its manufacturing and service locations. In addition to field service, Downing provides engineering services to quickly address our customer’s technical requirements.

Applied Industrial Machining (AIM)

Applied Industrial Machining is a leader in machining and the manufacturing of oilfield products and specialized parts. Since 1986, Applied has served customers effectively across a variety of jobs, including prototyping, hot jobs, and contract manufacturing. We are committed to meeting our customers’ needs and delivering quality work – on time and within budget.

OSO Perforating

Oso Perforating is a downhole tool provider specializing in perforating. We design and manufacture a variety of high-quality perforating guns and ancillary equipment. We take pride in providing our customers with completion tools that are safe and cost-effective. Our manufacturing capacity coupled with our technical prowess allows us to be highly responsive to our customers. We began our operations in 2016 and are a wholly-owned subsidiary of SEF Energy.

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