Natural Gas Services Group is a leading provider of compression equipment and services to oil and gas producers, primarily renting natural gas compressors of various sizes to exploration and production companies across major U.S. basins. The company generates revenue from three main sources: equipment rentals (its largest business), sales of compressor components and parts, and aftermarket services including equipment maintenance and overhauls; rental contracts typically run 12 to 60 months with month-to-month extensions. NGS serves a focused customer base of oil and gas operators who use the company's compression outsourcing model to increase production volumes, reduce operating costs, and avoid capital expenditures, while NGS competes on operational reliability, proprietary emissions-reduction technology, and geographic diversity of its fleet.