Spark Energy, Inc. is an independent retail energy services company. The Company provides residential and commercial customers across the United States with an alternative choice for their natural gas and electricity. The Company operates through two segments: Retail Natural Gas Segment and Retail Electricity Segment. The Retail Natural Gas segment consists of natural gas sales to, and natural gas transportation and distribution for, residential and commercial customers. It purchases natural gas supply through physical and financial transactions with market counterparts and supplies natural gas to residential and commercial consumers pursuant to fixed-price and variable-price. The Retail Electricity segment consists of electricity sales and transmission to residential and commercial customers. The Company has approximately 774,000 renewable energy credits (RCEs). As of July 5, 2017, the Company operates in 94 utility service territories across 19 states and the District of Columbia.