On January 26, 2015, SemGroup(R) Corporation issued a statement in response to an open letter issued by Sandell Asset Management Corporation. The Company stated that its Board of Directors and management team remain open to constructive input from, and seek to maintain an open dialogue with the Company shareholders. In addition, the Company stated that it regularly engages with its stockholders, including Sandell, and welcomes investor feedback.

Further, the Company stated that it is committed to acting in the best interests of all stockholders and has a demonstrated record of taking decisive actions to drive stockholder value creation. Furthermore, the Company stated that its Board and management team continually review the Company's strategic priorities and opportunities, including the Company's portfolio, business strategy and other potential avenues to create additional shareholder value.