Energy Exploration and Exploitation

Quartiles

The set of journals have been ranked according to their SJR and divided into four equal groups, four quartiles. Q1 (green) comprises the quarter of the journals with the highest values, Q2 (yellow) the second highest values, Q3 (orange) the third highest values and Q4 (red) the lowest values.

Category	Year	Quartile
Energy Engineering and Power Technology	1999	Q4
Energy Engineering and Power Technology	2000	Q2
Energy Engineering and Power Technology	2001	Q2
Energy Engineering and Power Technology	2002	Q2
Energy Engineering and Power Technology	2003	Q2
Energy Engineering and Power Technology	2004	Q2
Energy Engineering and Power Technology	2005	Q2
Energy Engineering and Power Technology	2006	Q2
Energy Engineering and Power Technology	2007	Q2
Energy Engineering and Power Technology	2008	Q2
Energy Engineering and Power Technology	2009	Q1
Energy Engineering and Power Technology	2010	Q1
Energy Engineering and Power Technology	2011	Q2
Energy Engineering and Power Technology	2012	Q2
Energy Engineering and Power Technology	2013	Q2
Energy Engineering and Power Technology	2014	Q2
Energy Engineering and Power Technology	2015	Q2
Energy Engineering and Power Technology	2016	Q2
Energy Engineering and Power Technology	2017	Q2
Energy Engineering and Power Technology	2018	Q2
Energy Engineering and Power Technology	2019	Q2
Energy Engineering and Power Technology	2020	Q2
Energy Engineering and Power Technology	2021	Q2
Energy Engineering and Power Technology	2022	Q2
Energy Engineering and Power Technology	2023	Q2
Fuel Technology	1999	Q4
Fuel Technology	2000	Q2
Fuel Technology	2001	Q2
Fuel Technology	2002	Q2
Fuel Technology	2003	Q2
Fuel Technology	2004	Q2
Fuel Technology	2005	Q2
Fuel Technology	2006	Q2
Fuel Technology	2007	Q2
Fuel Technology	2008	Q2
Fuel Technology	2009	Q1
Fuel Technology	2010	Q2
Fuel Technology	2011	Q2
Fuel Technology	2012	Q2
Fuel Technology	2013	Q2
Fuel Technology	2014	Q2
Fuel Technology	2015	Q2
Fuel Technology	2016	Q2
Fuel Technology	2017	Q2
Fuel Technology	2018	Q2
Fuel Technology	2019	Q2
Fuel Technology	2020	Q3
Fuel Technology	2021	Q3
Fuel Technology	2022	Q2
Fuel Technology	2023	Q2
Nuclear Energy and Engineering	1999	Q4
Nuclear Energy and Engineering	2000	Q3
Nuclear Energy and Engineering	2001	Q3
Nuclear Energy and Engineering	2002	Q2
Nuclear Energy and Engineering	2003	Q2
Nuclear Energy and Engineering	2004	Q2
Nuclear Energy and Engineering	2005	Q2
Nuclear Energy and Engineering	2006	Q2
Nuclear Energy and Engineering	2007	Q2
Nuclear Energy and Engineering	2008	Q3
Nuclear Energy and Engineering	2009	Q2
Nuclear Energy and Engineering	2010	Q2
Nuclear Energy and Engineering	2011	Q2
Nuclear Energy and Engineering	2012	Q3
Nuclear Energy and Engineering	2013	Q2
Nuclear Energy and Engineering	2014	Q2
Nuclear Energy and Engineering	2015	Q2
Nuclear Energy and Engineering	2016	Q2
Nuclear Energy and Engineering	2017	Q2
Nuclear Energy and Engineering	2018	Q2
Nuclear Energy and Engineering	2019	Q2
Nuclear Energy and Engineering	2020	Q2
Nuclear Energy and Engineering	2021	Q2
Nuclear Energy and Engineering	2022	Q2
Nuclear Energy and Engineering	2023	Q2
Renewable Energy, Sustainability and the Environment	1999	Q4
Renewable Energy, Sustainability and the Environment	2000	Q3
Renewable Energy, Sustainability and the Environment	2001	Q3
Renewable Energy, Sustainability and the Environment	2002	Q3
Renewable Energy, Sustainability and the Environment	2003	Q2
Renewable Energy, Sustainability and the Environment	2004	Q2
Renewable Energy, Sustainability and the Environment	2005	Q2
Renewable Energy, Sustainability and the Environment	2006	Q3
Renewable Energy, Sustainability and the Environment	2007	Q3
Renewable Energy, Sustainability and the Environment	2008	Q3
Renewable Energy, Sustainability and the Environment	2009	Q2
Renewable Energy, Sustainability and the Environment	2010	Q2
Renewable Energy, Sustainability and the Environment	2011	Q2
Renewable Energy, Sustainability and the Environment	2012	Q3
Renewable Energy, Sustainability and the Environment	2013	Q2
Renewable Energy, Sustainability and the Environment	2014	Q3
Renewable Energy, Sustainability and the Environment	2015	Q2
Renewable Energy, Sustainability and the Environment	2016	Q2
Renewable Energy, Sustainability and the Environment	2017	Q3
Renewable Energy, Sustainability and the Environment	2018	Q2
Renewable Energy, Sustainability and the Environment	2019	Q3
Renewable Energy, Sustainability and the Environment	2020	Q3
Renewable Energy, Sustainability and the Environment	2021	Q3
Renewable Energy, Sustainability and the Environment	2022	Q3
Renewable Energy, Sustainability and the Environment	2023	Q3

SJR

The SJR is a size-independent prestige indicator that ranks journals by their 'average prestige per article'. It is based on the idea that 'all citations are not created equal'. SJR is a measure of scientific influence of journals that accounts for both the number of citations received by a journal and the importance or prestige of the journals where such citations come from It measures the scientific influence of the average article in a journal, it expresses how central to the global scientific discussion an average article of the journal is.

Year	SJR
1999	0.101
2000	0.146
2001	0.171
2002	0.257
2003	0.270
2004	0.252
2005	0.345
2006	0.192
2007	0.208
2008	0.244
2009	0.638
2010	0.486
2011	0.419
2012	0.294
2013	0.421
2014	0.377
2015	0.409
2016	0.620
2017	0.501
2018	0.543
2019	0.489
2020	0.435
2021	0.467
2022	0.499
2023	0.477

Total Documents

Evolution of the number of published documents. All types of documents are considered, including citable and non citable documents.

Year	Documents
1999	27
2000	33
2001	32
2002	35
2003	30
2004	28
2005	32
2006	31
2007	28
2008	25
2009	27
2010	34
2011	51
2012	56
2013	52
2014	55
2015	54
2016	50
2017	44
2018	89
2019	93
2020	134
2021	115
2022	93
2023	135

Citations per document

This indicator counts the number of citations received by documents from a journal and divides them by the total number of documents published in that journal. The chart shows the evolution of the average number of times documents published in a journal in the past two, three and four years have been cited in the current year. The two years line is equivalent to journal impact factor ™ (Thomson Reuters) metric.

Cites per document	Year	Value
Cites / Doc. (4 years)	1999	0.017
Cites / Doc. (4 years)	2000	0.105
Cites / Doc. (4 years)	2001	0.121
Cites / Doc. (4 years)	2002	0.237
Cites / Doc. (4 years)	2003	0.134
Cites / Doc. (4 years)	2004	0.323
Cites / Doc. (4 years)	2005	0.376
Cites / Doc. (4 years)	2006	0.840
Cites / Doc. (4 years)	2007	0.438
Cites / Doc. (4 years)	2008	0.597
Cites / Doc. (4 years)	2009	0.759
Cites / Doc. (4 years)	2010	1.468
Cites / Doc. (4 years)	2011	1.360
Cites / Doc. (4 years)	2012	1.321
Cites / Doc. (4 years)	2013	1.185
Cites / Doc. (4 years)	2014	1.021
Cites / Doc. (4 years)	2015	1.374
Cites / Doc. (4 years)	2016	1.281
Cites / Doc. (4 years)	2017	1.498
Cites / Doc. (4 years)	2018	1.936
Cites / Doc. (4 years)	2019	1.945
Cites / Doc. (4 years)	2020	2.442
Cites / Doc. (4 years)	2021	2.503
Cites / Doc. (4 years)	2022	2.896
Cites / Doc. (4 years)	2023	2.846
Cites / Doc. (3 years)	1999	0.017
Cites / Doc. (3 years)	2000	0.034
Cites / Doc. (3 years)	2001	0.122
Cites / Doc. (3 years)	2002	0.272
Cites / Doc. (3 years)	2003	0.160
Cites / Doc. (3 years)	2004	0.309
Cites / Doc. (3 years)	2005	0.484
Cites / Doc. (3 years)	2006	0.911
Cites / Doc. (3 years)	2007	0.385
Cites / Doc. (3 years)	2008	0.418
Cites / Doc. (3 years)	2009	0.762
Cites / Doc. (3 years)	2010	1.650
Cites / Doc. (3 years)	2011	1.581
Cites / Doc. (3 years)	2012	1.420
Cites / Doc. (3 years)	2013	1.170
Cites / Doc. (3 years)	2014	1.019
Cites / Doc. (3 years)	2015	1.460
Cites / Doc. (3 years)	2016	1.348
Cites / Doc. (3 years)	2017	1.465
Cites / Doc. (3 years)	2018	2.169
Cites / Doc. (3 years)	2019	2.044
Cites / Doc. (3 years)	2020	2.261
Cites / Doc. (3 years)	2021	2.453
Cites / Doc. (3 years)	2022	2.997
Cites / Doc. (3 years)	2023	2.860
Cites / Doc. (2 years)	1999	0.000
Cites / Doc. (2 years)	2000	0.000
Cites / Doc. (2 years)	2001	0.117
Cites / Doc. (2 years)	2002	0.369
Cites / Doc. (2 years)	2003	0.119
Cites / Doc. (2 years)	2004	0.400
Cites / Doc. (2 years)	2005	0.586
Cites / Doc. (2 years)	2006	0.933
Cites / Doc. (2 years)	2007	0.190
Cites / Doc. (2 years)	2008	0.424
Cites / Doc. (2 years)	2009	0.585
Cites / Doc. (2 years)	2010	2.096
Cites / Doc. (2 years)	2011	1.836
Cites / Doc. (2 years)	2012	1.353
Cites / Doc. (2 years)	2013	1.178
Cites / Doc. (2 years)	2014	0.972
Cites / Doc. (2 years)	2015	1.421
Cites / Doc. (2 years)	2016	1.330
Cites / Doc. (2 years)	2017	1.452
Cites / Doc. (2 years)	2018	2.255
Cites / Doc. (2 years)	2019	1.549
Cites / Doc. (2 years)	2020	2.181
Cites / Doc. (2 years)	2021	2.586
Cites / Doc. (2 years)	2022	2.924
Cites / Doc. (2 years)	2023	2.529

Total Cites

Self-Cites

Evolution of the total number of citations and journal's self-citations received by a journal's published documents during the three previous years.
Journal Self-citation is defined as the number of citation from a journal citing article to articles published by the same journal.

Cites	Year	Value
Self Cites	1999	0
Self Cites	2000	0
Self Cites	2001	4
Self Cites	2002	12
Self Cites	2003	6
Self Cites	2004	20
Self Cites	2005	31
Self Cites	2006	59
Self Cites	2007	7
Self Cites	2008	3
Self Cites	2009	19
Self Cites	2010	88
Self Cites	2011	94
Self Cites	2012	113
Self Cites	2013	64
Self Cites	2014	40
Self Cites	2015	62
Self Cites	2016	73
Self Cites	2017	24
Self Cites	2018	76
Self Cites	2019	29
Self Cites	2020	68
Self Cites	2021	78
Self Cites	2022	26
Self Cites	2023	36
Total Cites	1999	1
Total Cites	2000	2
Total Cites	2001	10
Total Cites	2002	25
Total Cites	2003	16
Total Cites	2004	30
Total Cites	2005	45
Total Cites	2006	82
Total Cites	2007	35
Total Cites	2008	38
Total Cites	2009	64
Total Cites	2010	132
Total Cites	2011	136
Total Cites	2012	159
Total Cites	2013	165
Total Cites	2014	162
Total Cites	2015	238
Total Cites	2016	217
Total Cites	2017	233
Total Cites	2018	321
Total Cites	2019	374
Total Cites	2020	511
Total Cites	2021	775
Total Cites	2022	1025
Total Cites	2023	978

External Cites per Doc

Cites per Doc

Evolution of the number of total citation per document and external citation per document (i.e. journal self-citations removed) received by a journal's published documents during the three previous years. External citations are calculated by subtracting the number of self-citations from the total number of citations received by the journal’s documents.

Cites	Year	Value
External Cites per document	1999	0.017
External Cites per document	2000	0.034
External Cites per document	2001	0.073
External Cites per document	2002	0.141
External Cites per document	2003	0.100
External Cites per document	2004	0.103
External Cites per document	2005	0.151
External Cites per document	2006	0.256
External Cites per document	2007	0.308
External Cites per document	2008	0.385
External Cites per document	2009	0.536
External Cites per document	2010	0.550
External Cites per document	2011	0.488
External Cites per document	2012	0.411
External Cites per document	2013	0.716
External Cites per document	2014	0.767
External Cites per document	2015	1.080
External Cites per document	2016	0.894
External Cites per document	2017	1.314
External Cites per document	2018	1.655
External Cites per document	2019	1.885
External Cites per document	2020	1.960
External Cites per document	2021	2.206
External Cites per document	2022	2.921
External Cites per document	2023	2.754
Cites per document	1999	0.017
Cites per document	2000	0.034
Cites per document	2001	0.122
Cites per document	2002	0.272
Cites per document	2003	0.160
Cites per document	2004	0.309
Cites per document	2005	0.484
Cites per document	2006	0.911
Cites per document	2007	0.385
Cites per document	2008	0.418
Cites per document	2009	0.762
Cites per document	2010	1.650
Cites per document	2011	1.581
Cites per document	2012	1.420
Cites per document	2013	1.170
Cites per document	2014	1.019
Cites per document	2015	1.460
Cites per document	2016	1.348
Cites per document	2017	1.465
Cites per document	2018	2.169
Cites per document	2019	2.044
Cites per document	2020	2.261
Cites per document	2021	2.453
Cites per document	2022	2.997
Cites per document	2023	2.860

% International Collaboration

International Collaboration accounts for the articles that have been produced by researchers from several countries. The chart shows the ratio of a journal's documents signed by researchers from more than one country; that is including more than one country address.

Year	International Collaboration
1999	3.70
2000	12.12
2001	12.50
2002	5.71
2003	20.00
2004	28.57
2005	15.63
2006	0.00
2007	0.00
2008	8.00
2009	22.22
2010	8.82
2011	23.53
2012	14.29
2013	23.08
2014	20.00
2015	29.63
2016	26.00
2017	13.64
2018	14.61
2019	16.13
2020	17.91
2021	17.39
2022	16.13
2023	13.33

Citable documents

Non-citable documents

Not every article in a journal is considered primary research and therefore "citable", this chart shows the ratio of a journal's articles including substantial research (research articles, conference papers and reviews) in three year windows vs. those documents other than research articles, reviews and conference papers.

Documents	Year	Value
Non-citable documents	1999	0
Non-citable documents	2000	0
Non-citable documents	2001	0
Non-citable documents	2002	1
Non-citable documents	2003	1
Non-citable documents	2004	2
Non-citable documents	2005	1
Non-citable documents	2006	1
Non-citable documents	2007	0
Non-citable documents	2008	0
Non-citable documents	2009	0
Non-citable documents	2010	0
Non-citable documents	2011	0
Non-citable documents	2012	0
Non-citable documents	2013	0
Non-citable documents	2014	0
Non-citable documents	2015	1
Non-citable documents	2016	1
Non-citable documents	2017	1
Non-citable documents	2018	1
Non-citable documents	2019	2
Non-citable documents	2020	3
Non-citable documents	2021	2
Non-citable documents	2022	3
Non-citable documents	2023	2
Citable documents	1999	59
Citable documents	2000	58
Citable documents	2001	82
Citable documents	2002	91
Citable documents	2003	99
Citable documents	2004	95
Citable documents	2005	92
Citable documents	2006	89
Citable documents	2007	91
Citable documents	2008	91
Citable documents	2009	84
Citable documents	2010	80
Citable documents	2011	86
Citable documents	2012	112
Citable documents	2013	141
Citable documents	2014	159
Citable documents	2015	162
Citable documents	2016	160
Citable documents	2017	158
Citable documents	2018	147
Citable documents	2019	181
Citable documents	2020	223
Citable documents	2021	314
Citable documents	2022	339
Citable documents	2023	340

Cited documents

Uncited documents

Ratio of a journal's items, grouped in three years windows, that have been cited at least once vs. those not cited during the following year.

Documents	Year	Value
Uncited documents	1999	58
Uncited documents	2000	57
Uncited documents	2001	72
Uncited documents	2002	75
Uncited documents	2003	87
Uncited documents	2004	80
Uncited documents	2005	68
Uncited documents	2006	61
Uncited documents	2007	71
Uncited documents	2008	68
Uncited documents	2009	49
Uncited documents	2010	34
Uncited documents	2011	30
Uncited documents	2012	39
Uncited documents	2013	67
Uncited documents	2014	78
Uncited documents	2015	58
Uncited documents	2016	66
Uncited documents	2017	55
Uncited documents	2018	39
Uncited documents	2019	63
Uncited documents	2020	54
Uncited documents	2021	83
Uncited documents	2022	69
Uncited documents	2023	77
Cited documents	1999	1
Cited documents	2000	1
Cited documents	2001	10
Cited documents	2002	17
Cited documents	2003	13
Cited documents	2004	17
Cited documents	2005	25
Cited documents	2006	29
Cited documents	2007	20
Cited documents	2008	23
Cited documents	2009	35
Cited documents	2010	46
Cited documents	2011	56
Cited documents	2012	73
Cited documents	2013	74
Cited documents	2014	81
Cited documents	2015	105
Cited documents	2016	95
Cited documents	2017	104
Cited documents	2018	109
Cited documents	2019	120
Cited documents	2020	172
Cited documents	2021	233
Cited documents	2022	273
Cited documents	2023	265

% Female Authors

Evolution of the percentage of female authors.

Year	Female Percent
1999	31.82
2000	13.04
2001	23.08
2002	15.38
2003	23.53
2004	12.50
2005	15.15
2006	22.73
2007	9.30
2008	13.64
2009	29.67
2010	37.89
2011	27.21
2012	26.56
2013	30.91
2014	33.16
2015	20.57
2016	27.03
2017	29.80
2018	29.49
2019	26.33
2020	29.17
2021	31.54
2022	31.76
2023	30.08

Documents cited by public policy (Overton)

Evolution of the number of documents cited by public policy documents according to Overton database.

Documents	Year	Value
Overton	1999	0
Overton	2000	2
Overton	2001	0
Overton	2002	4
Overton	2003	3
Overton	2004	0
Overton	2005	2
Overton	2006	3
Overton	2007	0
Overton	2008	0
Overton	2009	0
Overton	2010	1
Overton	2011	0
Overton	2012	0
Overton	2013	3
Overton	2014	1
Overton	2015	1
Overton	2016	0
Overton	2017	0
Overton	2018	1
Overton	2019	3
Overton	2020	1
Overton	2021	2
Overton	2022	0
Overton	2023	0