Enerven is a Dallas-based provider of services to the gas compression industry. While a portfolio of field services has been the foundation of the business, the company offers full-service rental and leasing of gas compression equipment. Leading with Service Technology Enerven Compression Services (ECS) leases gas compression equipment to producers, gas storage companies and midstream operators. The fleet numbers about 375 units and 210, 000 hp in various sizes and configurations.