Tulsa, Okla.—PennWell Corp., publisher of Oil & Gas Journal
, announced Friday that it has acquired the assets of HCI Publications, a Kansas City, Mo.-based b-to-b media company serving the hydroelectric industry. The company operates HydroVision and Waterpower conferences and exhibitions and publishes Hydro Review, HRW,
and HydroNews.net. Financial terms of the sale were not disclosed. HCI was represented in the sale by the merger and acquisition advisory firm Whitestone Communications.