SCOTTSDALE, Ariz., Aug. 2, 2017 /PRNewswire/ - Delta International Oil & Gas Inc. (OTCQB: DLTZ) ("Delta") is pleased to announce that it has closed its first investment in Landmaster Partners, Inc ("Landmaster"), a Texas-focused oil exploration and production company for almost 20 years. The investment was done in the form of an 18-month Note with a [...]