I have never seen this type of split before, but I guess that it is only allowed on the OTCQB.
GSXN | 17 hours ago DENVER, June 16, 2014 /PRNewswire/ -- Gasco Energy, Inc. (OTCQB: GSXN) ("Gasco" or the "Company") today announced that its Board of Directors and majority stockholders, Markham LLC and Orogen Energy, Inc. (the "Majority Stockholders"), have approved a 1-for-165,059,389 reverse stock split of the Company's common stock. It is anticipated that the reverse stock split will be effective on the close of business on Monday, June 30, 2014. As a result of the reverse stock split, the Majority Stockholders will be the only stockholders of the Company and the other stockholders will receive a cash payment of $0.00288 per share in lieu of receiving a fractional share. The Company has retained Computershare as the exchange agent for the reverse stock split.