Rank	Journal	Value
1	Journal of Petroleum Science and Engineering	21
2	Petroleum Exploration and Development	19
3	Journal of Petroleum Exploration and Production Technology	7
-	SPE Reservoir Evaluation & Engineering	7
5	SPE Journal	6
6	SPE Drilling & Completion	5
7	Petroleum Chemistry	3
-	Petroleum Science and Technology	3
-	SPE Production & Operations	3
-	Oil Shale	3
11	CT&F-Ciencia Tecnologia y Futuro	2
12	Journal of the Japan Petroleum Institute	1
-	Chemistry and Technology of Fuels and Oils	1
-	International Journal of Oil Gas and Coal Technology	1
15	Petrophysics	0