Former President Olusegun Obasanjo has carpeted the Nigerian National Petroleum Corporation Limited (NNPCL) over the recent invitation extended to him, to tour both Port Harcourt and Warri refineries, describing it as disrespectful.Reacting to the invitation, through his media aide, Kehinde Akinyemi, Obasanjo said such an open invitation was disrespectful to his office and person.He noted that t...