Spark Energy, Inc. provided earnings guidance for the year ending December 31, 2017. For the year, the company expects adjusted EBITDA of $90.0 million – $100.0 million. The new guidance represents approximately a 100% increase over Spark’s initial 2016 adjusted EBITDA guidance. Its 2017 guidance is based upon projected customer acquisition costs of $27.0 million – $33.0 million and excludes the effect of any additional contributions from potential dropdowns or acquisitions.