0000950103-09-001440 4 2 20090616 20090618 20090618 NIEHAUS ROBERT H 0001241677 4 34 001-33963 09898616 4747 GAILLARDIA PARKWAY OKLAHOMA CITY OK 73142 GHL Acquisition Corp. 0001418819 3669 000000000 DE 1231 C/O GREENHILL & CO. 300 PARK AVENUE NEW YORK NY 10022 212-389-1500 C/O GREENHILL & CO. 300 PARK AVENUE NEW YORK NY 10022 4 1 dp13836_4-niehausex.xml FORM 4 EX-24 2 dp13836_ex24.htm EXHIBIT 24