Kuwait’s state oil firm, Kuwait Petroleum Corporation (KPC), has asked some of the asset management funds bidding for a stake in its oil pipeline network to tap other investors in their bids for the planned sale estimated at $7 billion, anonymous sources familiar with the process told Reuters on Thursday. Early this year, it emerged that KPC is considering following in the footsteps of its Saudi and Abu Dhabi peers by tapping major international infrastructure investors to buy a stake in its oil pipeline network. KPC held initial talks with…