In the case of a partnership, the depletion allowance shall be computed separately by the partners and not by the partnership. The partnership shall allocate to each partner his proportionate share of the adjusted basis of each partnership oil or gas property. The allocation is to be made as of the later of the date of acquisition of the oil or gas property by the partnership, or January 1, 1975. A partner’s proportionate share of the adjusted basis of partnership property shall be determined in accordance with his interest in partnership capital or income and, in the case of property contributed to the partnership by a partner, section
704
(c) (relating to contributed property) shall apply in determining such share. Each partner shall separately keep records of his share of the adjusted basis in each oil and gas property of the partnership, adjust such share of the adjusted basis for any depletion taken on such property, and use such adjusted basis each year in the computation of his cost depletion or in the computation of his gain or loss on the disposition of such property by the partnership. For purposes of section
732 (relating to basis of distributed property other than money), the partnership’s adjusted basis in mineral property shall be an amount equal to the sum of the partners’ adjusted basis in such property as determined under this paragraph.