For so long as Union has Helicoptors on charter and
provided that PTT's crew change schedule is similar to
Union's,Concessionaires agree to provide
transportation between Songkhla and the Erawan field
aboard such chartered helicopter/s for six (6) PTT
personnel on space available basis. At PTT' s
written request , Concessionaires at their discretion
may extend such transportaion faciities to
additional employees and/or invitees of PTT.