July 28 (Reuters) - Exxon Mobil Corp (NYSE:XOM) XOM.N
* Says no plans to make share repurchases in third quarter
* Says it expects to add 3 drilling rigs to Permian Basin acreage by end of August, bringing rig count there to 19
* Says still expects 2017 capex of $22 billion
* Says has not had any impacts in Qatar to LNG production or exports
* Says 'Qatar is a very important partnership for us'
* Says 'Very interested' in continued investment in Qatar
* Says annual capex should 'slowly ramp up' from $22 billion through end of decade