Citation Rankings (Highly Cited Researchers) and the list of the most cited and influential researchers cover a wide range of scientific fields, spanning 197 main and sub-disciplines, as well as the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings, offering a unique service. Additionally, the list without CERN, Statistical Data, etc., provided exclusively by “AD Scientific Index”, is part of our effort to balance the situation created by CERN and researchers with statistical data, who have an advantage over others, especially those in the social and humanities fields. There should be new regulations for multi-author and CERN papers. Citation lists also reveal many rule violations and unethical practices. See also for more specific citation analyses: Scientists Last 6 years Citation Index, Universities Total Citations Rankings 2025 and Universities Last 6 Years Citations Rankings 2025
* Total Citation Counts Rankings
Ranking Based On Selection :1
Reservoir Engineering
Pressure Transient Testing
Production Data Analysis
Engineering Dynamics
Mechanics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,516
1,798
0.715
* Total Citation Counts Rankings
Ranking Based On Selection :2
Well Completions
Well Integrity
Well Construction
Hydraulic Fracturing
Artificial Lift
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,128
1,605
0.754
* Total Citation Counts Rankings
Ranking Based On Selection :3
Petroleum Engineering
Reservoir Engineering
Enhanced Oil Recovery
Unconventional Reservoir
Drilling Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
595
594
0.998
* Total Citation Counts Rankings
Ranking Based On Selection :4
Geomechanics
Structural Geology
Tectonics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
450
310
0.689
* Total Citation Counts Rankings
Ranking Based On Selection :5
Petroleum and mining engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
63
62
0.984
Ralph E Flori
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,516
1,798
0.715
Reservoir Engineering
Pressure Transient Testing
Production Data Analysis
Engineering Dynamics
Mechanics
Shari Dunn Norman
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,128
1,605
0.754
Well Completions
Well Integrity
Well Construction
Hydraulic Fracturing
Artificial Lift
Mohamed Ahdaya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
595
594
0.998
Petroleum Engineering
Reservoir Engineering
Enhanced Oil Recovery
Unconventional Reservoir
Drilling Engineering
Andreas Eckert
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
450
310
0.689
Geomechanics
Structural Geology
Tectonics
Soura K Al-Jaberi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
63
62
0.984
Petroleum and mining engineering