Table

	1st quarter 2014	2nd quarter 2014	3rd quarter 2014	4th quarter 2014	1st quarter 2015
Investments, total	52 095	55 734	54 911	51 570	47 843
Extraction of crude oil and natural gas	51 103	54 253	53 615	50 802	46 736
Exploration and concept studies	8 967	8 939	8 133	8 285	6 809
Exploration drilling	6 537	6 251	5 022	5 705	4 767
General surveys	509	658	1 037	860	513
Field evaluation/field development	430	454	394	478	390
Administration and other costs	949	717	668	843	909
Concept studies	542	859	1 012	399	230
Field development	16 915	18 646	17 907	19 257	14 265
Commodities, field development	7 655	7 859	7 641	8 607	8 396
Services, field development	4 553	5 609	5 638	6 855	3 257
Production drilling, field development	4 707	5 179	4 628	3 795	2 612
Fields on stream	23 278	23 698	23 622	19 465	21 786
Commodities, fields on stream	2 363	2 922	1 834	1 291	2 079
Services, fields on stream	9 384	8 371	9 082	7 194	5 638
Production drilling, fields on stream	11 532	12 405	12 706	10 981	14 068
Onshore activities	936	1 299	1 243	1 036	1 266
Shutdown and removal	1 006	1 670	2 710	2 759	2 610
Pipeline transportation	992	1 481	1 296	768	1 107