entergy corporation and subsidiaries management 2019s financial discussion and analysis a result of the entergy louisiana and entergy gulf states louisiana business combination , results of operations for 2015 also include two items that occurred in october 2015 : 1 ) a deferred tax asset and resulting net increase in tax basis of approximately $ 334 million and 2 ) a regulatory liability of $ 107 million ( $ 66 million net-of-tax ) as a result of customer credits to be realized by electric customers of