Item	2014	2015	2016	2017	2018	∆ 2018/2017 (%)
Revenue Starting from 1 January 2018, the Group has been applying IFRS 15 Revenue from Contracts with Customers. In line with its transitional provisions, the Group applies the standard retrospectively, adjusting the comparative data for 2017 financial year: expenses associated with export duties in the amount of ₽ 76.7 bn were reclassified; revenue from transportation services in the amount of ₽ 2.0 bn, included in the sales price of petroleum products, was reclassified from Crude oil, gas and petroleum product sales to Other revenue. crude oil, gas and petroleum product sales were disclosed net of 2017 excise taxes of ₽ 69 bn (vs ₽ 92.8 bn for 2018).
Crude oil, gas and petroleum products sales	1,644,558	1,581,777	1,637,553	1,870,790	2,418,717	29.3
Less: export duties and sales related excise	(282,319)	(187,832)	(150,156)	–	–	–
Other revenue	45,999	73,998	58,211	63,799	70,575	10.6
Total revenue	1,408,238	1,467,943	1,545,608	1,934,589	2,489,292	28.7
Costs and other deductions
Purchases of oil, gas and petroleum products	(382,505)	(345,909)	(351,294)	(456,037)	(617,306)	35.4
Production and operating expenses	(171,711)	(214,267)	(201,862)	(216,530)	(228,618)	5.6
Selling, general and administrative expenses	(86,318)	(100,176)	(108,981)	(106,629)	(114,882)	7.7
Transportation expenses	(116,125)	(133,320)	(132,984)	(141,982)	(147,182)	3.7
Depreciation, depletion and amortisation	(85,951)	(114,083)	(129,845)	(140,998)	(175,451)	24.4
Taxes other than income tax	(343,576)	(353,145)	(381,131)	(492,269)	(652,784)	32.6
Export duties	–	–	–	(76,658)	(94,916)	23.8
Exploration expenses	(936)	(922)	(1,195)	(963)	(1,411)	46.5
Total operating expenses	(1,187,122)	(1,261,822)	(1,307,292)	(1,632,066)	(2,032,550)	24.5
Other expenses	(8,471)	–	–	–	–	–
Operating profit	212,645	206,121	238,316	302,523	456,742	51.0
Share of profit / (loss) of associates and joint ventures	(6,306)	24,956	34,116	45,504	90,704	99.3
Net foreign exchange (loss) / gain	(52,265)	(67,910)	28,300	(241)	(33,558)	> 200
Finance income	7,075	14,732	11,071	10,098	7,506	(25.7)
Finance expense	(15,279)	(33,943)	(34,282)	(25,127)	(21,476)	(14.5)
Other (expenses) / income, net	–	1,494	(17,982)	(7,557)	(19,796)	162.0
Total other (expenses) / income	(66,775)	(60,671)	21,223	22,677	23,380	3.1
Profit before income tax	145,870	145,450	259,539	325,200	480,122	47.6
Current income tax expense	(17,518)	(38,026)	(21,290)	(43,695)	(59,585)	36.4
Deferred income tax benefit / (expense)	(1,696)	8,774	(28,524)	(11,827)	(19,544)	65.2
Total income tax benefit / (expense)	(19,214)	(29,252)	(49,814)	(55,522)	(79,129)	42.5
Profit for the period	126,656	116,198	209,725	269,678	400,993	48.7
Less: profit attributable to non-controlling interest	(4,563)	(6,537)	(9,546)	(16,404)	(24,326)	48.3
Profit attributable to Gazprom Neft	122,093	109,661	200,179	253,274	376,667	48.7

In 2018, Gazprom Neft showed sustainable growth across key financial indicators. The Company’s revenue went up by 28.7% to ₽ 2.49 tn, which was driven by a favourable pricing environment, improved operational efficiency and consistent production growth at the Novoportovskoye, Prirazlomnoye and Vostochno-Messoyakhskoye fields.