Rex Energy Corp. (NASDAQ: REXX) said Jan. 23 it had appointed Curt Walker, the company's current chief accounting officer, to the position of CFO.

As a result, Thomas Rajan, the company's previous CFO, has resigned from his position effective immediately.

Rex said that Rajan's resignation was not the result of any disagreements with its board or executive management, and is not related to any issues regarding financial disclosures. Rajan had been Rex's CFO since January 2015.

Walker, who has been with Rex since 2007, will now be responsible for all financial, accounting and treasury functions, as well as other related duties, according to the company press release.

Prior to his promotion, Walker held the position of chief accounting officer since May 2012. Before that, he served as vice president of accounting.

"Curt has been a key part of the Rex team for over a decade and has been integral in the success of our company. We are very pleased that he has accepted the expanded role and we're confident that he is very qualified for the job," Tom Stabley, president and CEO of Rex, said in a statement.

Before joining Rex, Walker was with YRC Worldwide, a Fortune 500 trucking and transportation company. he holds a Bachelor of Science degree in Accounting and an M.B.A., both from Shippensburg University.

Headquartered in State College, Pa., Rex Energy is an independent E&P with its core operations in the Appalachian Basin. The company held about 112,500 net acres in the Pennsylvania Marcellus and Ohio Utica shales, according to a November 2017 corporate presentation.