Nov 28 (Reuters) - Oil Basins Ltd OBL.AX :
* OBL to challenge possible legal claim by former OBL executive directors Kim Mcgrath and Neil Doyle and lodge counterclaim against them
* OBL is in process of conducting an investigation as to merits of such a claim
* At this point both Mcgrath and Doyle are refusing to return company property, information and records Source text for Eikon: Further company coverage: OBL.AX