22 aircraft were lost mainly to night fighters.[52] 4 August 1944 oil refineries Mission 514: 181 B-17s bombed Hamburg refineries.[53] 6 August 1944 oil refineries Mission 524: Hamburg oil refineries bombed at Hamburg/Deutsche (54), Hamburg/Eband [sic] (33), Hamburg/Rhenania (61), Hamburg/Rhenania-Ossag (62), Hamburg/Schlieman (32), and Hamburg/Schulau (72 B-17s).[53] Rhenania-Ossag was a subsidiary of Royal Dutch Shell.[citation needed] night of 26/27 August 1944 diversionary nuisance raid 13 Mosquitoes.[54] night of 29/30 August 1944 diversionary nuisance raid Hamburg was one of five cities bombed by a total of 53 Mosquitoes.[54] night of 6/7 September 1944 nuisance raid 32 Mosquitoes.[55] night of 26/27 September 1944 diversionary nuisance raid 6 Mosquitoes.[55] night of 30/1 October 1944 46 Mosquitoes.[56] 6 October 1944 oil refinery (Harburg/Rhenania) Mission 667: 121 of 406 dispatched B-24s bombed the Harburg/Rhenania oil refinery.[57] night of 12/13 October 1944 52 Mosquitoes.[56] 25 October 1944 oil refineries Mission 688: 455 B-17s dispatched to hit the Harburg (221, including those of the 447th BG) and Rhenania oil refineries (214) at Hamburg.