Apergy to be Added to the S&P MidCap 400 Index THE

THE WOODLANDS, Texas, May 09, 2018 (GLOBE NEWSWIRE) -- S&P Dow Jones Indices, a division of S&P Global Inc., announced on May 2, 2018 that Apergy Corporation (“Apergy”) (NYSE: APY ), a leading provider of highly engineered equipment and technologies that help companies drill for and produce oil and gas safely and efficiently around the world, will be added to the S&P 400 MidCap index prior to the open of trading on Thursday, May 10, 2018.

Sivasankaran "Soma" Somasundaram, President and Chief Executive Officer, commented, “As Apergy begins its journey as a new publicly traded company, we are pleased to be included in the S&P 400 MidCap index. We believe that inclusion in the S&P 400 MidCap index will enhance Apergy’s trading liquidity and name recognition.”

About Apergy Apergy is a leading provider of highly engineered equipment and technologies that help companies drill for and produce oil and gas safely and efficiently around the world. Apergy's products provide efficient functioning throughout the lifecycle of a well - from drilling to completion to production. The company’s Production and Automation offerings consist of artificial lift equipment and solutions, including rod pumping systems, electric submersible pump systems, progressive cavity pumps and drive systems and plunger lifts, as well as a full automation offering consisting of equipment, software and Industrial Internet of Things (“IIoT”) solutions for downhole monitoring, wellsite productivity enhancement and asset integrity management.  Apergy’s Drilling Technologies offering provides market leading polycrystalline diamond cutters and bearings that result in cost effective and efficient drilling. For further information about Apergy, visit http://www.Apergy.com .

Forward-Looking Statements:

This press release contains statements relating to future actions and results, which are "forward-looking statements" within the meaning of the Securities Exchange Act of 1934, as amended, and the Private Securities Litigation Reform Act of 1995. Such statements relate to, among other things, Apergy's expected admission to the S&P 400 MidCap index and the liquidity of Apergy’s common stock.  Forward-looking statements are subject to inherent risks and uncertainties that could cause actual results to differ materially from current expectations. You are encouraged to refer to the documents that Apergy files from time to time with the Securities and Exchange Commission, including the "Risk Factors" section of Apergy's information statement included in its Form 10 registration statement, for a discussion of these and other risks and uncertainties. Apergy undertakes no obligation to update any forward-looking statement, except as required by applicable law.

Investor Contact: David Skipper – david.skipper@doverals.com – 713-203-8031

Media Contact: Susan Johnson – susan.johnson@doverals.com – 346-224-0556