Hi Gary, welcome to the forum.
The 705th Petroleum Distribution Co served in Italy under the command of the Peninsular Base Section. They have campaign credits for Naples - Foggia, Rome - Arno, & Po Valley and a Meritorious Unit Commendation for 12 May`44 - 31 Oct `45 per General Order 303, Hqs Peninsular Base Section dtd 7 Dec `45.
In the book : United States Army in World War 2, Technical Services, The Corps of Engineers, the 705th EPDCo joined & worked with the 696th EPDCo in Naples in Dec 1943.
United States Army in World War 2, Technical Services, The Corps of Engineers
I dont know if the 705th went to Italy direct from the US or if they were in North Africa prior to going to Italy which was the usual staging / training area for units going to Italy, If they were in North Africa, they would have been Under the Mediteranean Base section at Oran, or the Eastern Base Section in Tunisia.