World's Best Scientists 2026 revealed!
AAPG Bulletin
H-index 25

AAPG Bulletin

0149-1423

Published by: American Association of Petroleum Geologists

https://www.aapg.org/publications/journals/bulletin

Ranking & Metrics

Discipline name Position Best Scientists Publications D-Index
Earth Science 133 156 188 24

Additional Metrics

Number of Best Scientists*: 196
Documents by Best Scientists*: 218
Top 100 Ranked Scientists*: 5
SCIMAGO H-index: 166
SCIMAGO SJR: 0.936
Impact Factor: 2.5

Overview

Top Research Topics at AAPG Bulletin?

The aim of the journal is to expand the discussion of research in Paleontology, Geochemistry, Structural basin, Geomorphology and Sedimentary rock. Topics like Cretaceous, Sedimentary depositional environment, Facies, Sedimentary basin and Petroleum reservoir are tackled as part of the discussions on Paleontology. The study on Petroleum reservoir presented in AAPG Bulletin intersects with subjects under the field of Petrology.

The concepts on Geochemistry presented in it can also apply to other research fields, including Carbonate, Mineralogy, Petroleum and Source rock. The work on Petroleum tackled in the journal brings together disciplines like Fossil fuel, Mineral resource classification and Drilling. Drilling research discussed connects with the study of Mining engineering.

The journal features Structural basin research that overlaps with concepts in Tectonics. The Sedimentary rock research presented places emphasis on topics like Carbonate rock, Clastic rock and Geologic time scale.

  • Paleontology (35.61%)
  • Geochemistry (19.63%)
  • Structural basin (15.37%)

What are the most cited papers published in the journal?

  • Unconventional shale-gas systems: The Mississippian Barnett Shale of north-central Texas as one model for thermogenic shale-gas assessment (1821 citations)
  • Guidelines for Evaluating Petroleum Source Rock Using Programmed Pyrolysis (1611 citations)
  • Fractured shale-gas systems (1511 citations)

Research areas of the most cited articles at AAPG Bulletin:

The published papers tackle a plethora of topics, such as Paleontology, Sedimentary rock, Mineralogy, Geochemistry and Geomorphology. The published papers address concerns in the field of Sedimentary rock by exploring it in line with topics in Petrology which intersect with Geotechnical engineering and Fault (geology) subjects. The published papers hold forums on Geochemistry that merge themes from other disciplines such as Carbonate and Natural gas.

What topics the last edition of the journal is best known for?

  • World War II
  • Ecology
  • China

The previous edition focused in particular on these issues:

The main research concerns discussed in AAPG Bulletin are Geochemistry, Structural basin, Source rock, Oil shale and Petrology. While AAPG Bulletin focused on Geochemistry, it was also able to explore topics like Organic matter, Total organic carbon, Natural gas, Cretaceous and Facies. It explores topics in Facies which can be helpful for research in disciplines like Sedimentary rock, Clastic rock, Diagenesis, Directional drilling and Sedimentary depositional environment.

Structural basin studies covered in AAPG Bulletin falls within the purview of Paleontology. The presented Source rock research provided insight into the related

  • Maturity (geology) which connect with Ordovician,
  • Petrography which connect with Porosity.. AAPG Bulletin explores research in Outcrop alongside concepts in Carbonate and other areas of study in Mineralogy.

The most cited articles from the last journal are:

  • Sealing mechanisms in volcanic faulted reservoirs in Xujiaweizi extension, northern Songliao Basin, northeastern China (10 citations)
  • Passive versus active salt diapirism (10 citations)
  • Consideration of the limitations of thermal maturity with respect to vitrinite reflectance, Tmax, and other proxies (8 citations)

Papers citation over time

A key indicator for each journal is its effectiveness in reaching other researchers with the papers published at that venue.

The chart below presents the interquartile range (first quartile 25%, median 50% and third quartile 75%) of the number of citations of articles over time.

The top authors publishing in AAPG Bulletin (based on the number of publications) are:

  • Ernest A. Mancini (90 papers) absent at the last edition,
  • Paul Weimer (73 papers) absent at the last edition,
  • Robert R. Berg (62 papers) absent at the last edition,
  • Michel T. Halbouty (61 papers) absent at the last edition,
  • Ian Lerche (58 papers) absent at the last edition.

The overall trend for top authors publishing in this journal is outlined below. The chart shows the number of publications at each edition of the journal for top authors.

Only papers with recognized affiliations are considered

The top affiliations publishing in AAPG Bulletin (based on the number of publications) are:

  • University of Texas at Austin (422 papers) published 4 papers at the last edition, 11 less than at the previous edition,
  • United States Geological Survey (226 papers) published 5 papers at the last edition, 4 more than at the previous edition,
  • Chevron Corporation (225 papers) published 3 papers at the last edition the same number as at the previous edition,
  • Texas A&M University (160 papers) published 3 papers at the last edition, 2 more than at the previous edition,
  • Mobil (156 papers) absent at the last edition.

The overall trend for top affiliations publishing in this journal is outlined below. The chart shows the number of publications at each edition of the journal for top affiliations.

Publication chance based on affiliation

The publication chance index shows the ratio of articles published by the best research institutions in the journal edition to all articles published within that journal. The best research institutions were selected based on the largest number of articles published during all editions of the journal.

The chart below presents the percentage ratio of articles from top institutions (based on their ranking of total papers).Top affiliations were grouped by their rank into the following tiers: top 1-10, top 11-20, top 21-50, and top 51+. Only articles with a recognized affiliation are considered.

During the most recent 2021 edition, 18.89% of publications had an unrecognized affiliation. Out of the publications with recognized affiliations, 20.55% were posted by at least one author from the top 10 institutions publishing in the journal. Another 21.92% included authors affiliated with research institutions from the top 11-20 affiliations. Institutions from the 21-50 range included 23.29% of all publications and 34.25% were from other institutions.

Returning Authors Index

A very common phenomenon observed among researchers publishing scientific articles is the intentional selection of journals they have already attended in the past. In particular, it is worth analyzing the case when the authors participate in the same journal from year to year.

The Returning Authors Index presented below illustrates the ratio of authors who participated in both a given as well as the previous edition of the journal in relation to all participants in a given year.

Returning Institution Index

The graph below shows the Returning Institution Index, illustrating the ratio of institutions that participated in both a given and the previous edition of the conference in relation to all affiliations present in a given year.

The experience to innovation index

Our experience to innovation index was created to show a cross-section of the experience level of authors publishing in a journal. The index includes the authors publishing at the last edition of a journal, grouped by total number of publications throughout their academic career (P) and the total number of citations of these publications ever received (C).

The group intervals were selected empirically to best show the diversity of the authors' experiences, their labels were selected as a convenience, not as judgment. The authors were divided into the following groups:

  • Novice - P < 5 or C < 25 (the number of publications less than 5 or the number of citations less than 25),
  • Competent - P < 10 or C < 100 (the number of publications less than 10 or the number of citations less than 100),
  • Experienced - P < 25 or C < 625 (the number of publications less than 25 or the number of citations less than 625),
  • Master - P < 50 or C < 2500 (the number of publications less than 50 or the number of citations less than 2500),
  • Star - P ≥ 50 and C ≥ 2500 (both the number of publications greater than 50 and the number of citations greater than 2500).

The chart below illustrates experience levels of first authors in cases of publications with multiple authors.

Top Publications

  • Lithofacies and depositional mechanisms of the Ordovician–Silurian Wufeng–Longmaxi organic-rich shales in the Upper Yangtze area, southern China

    Yangbo Lu;Fang Hao;Yongchao Lu;Detian Yan

    (2020)
    67 Citations
  • State of stress in areas of active unconventional oil and gas development in North America

    (2022)
    65 Citations
  • Identifying the key source rocks in heterogeneous saline lacustrine shales: Paleogene shales in the Dongpu depression, Bohai Bay Basin, eastern China

    (2022)
    50 Citations
  • Passive versus active salt diapirism

    Mark G. Rowan;Katherine A. Giles

    (2021)
    42 Citations
  • A very unconventional hydrocarbon play: The Mesoproterozoic Velkerri Formation of northern Australia

    (2022)
    40 Citations
  • Influence of tectonic exhumation on porosity of Wufeng–Longmaxi shale in the Fuling gas field of the eastern Sichuan Basin, China

    Rui Liu;Fang Hao;Terry Engelder;Zhiguo Shu

    (2020)
    39 Citations
  • On the dolomite reservoirs formed by dissolution: Differential eogenetic versus hydrothermal in the lower Permian Sichuan Basin, southwestern China

    Di Xiao;Jian Cao;Bing Luo;Xiucheng Tan

    (2020)
    39 Citations
  • Geological-petrophysical insights in the deep Cambrian dolostone reservoirs in Tarim Basin, China

    Jin Lai;Shichen Liu;Yi Xin;Song Wang

    (2021)
    38 Citations
  • Grain assemblages and diagenesis in organic-rich mudrocks, Upper Pennsylvanian Cline shale (Wolfcamp D), Midland Basin, Texas

    Junwen Peng;Kitty L. Milliken;Qilong Fu;Xavier Janson

    (2020)
    37 Citations
  • Pressure coring a Gulf of Mexico deep-water turbidite gas hydrate reservoir: Initial results from The University of Texas–Gulf of Mexico 2-1 (UT-GOM2-1) Hydrate Pressure Coring Expedition

    Peter B. Flemings;Stephen C. Phillips;Ray Boswell;Timothy S. Collett

    (2020)
    37 Citations

Related Online Degrees & Career Pathways

Exploring Earth Science in the USA opens doors to a variety of educational pathways and careers. For those starting out, online associate degree programs offer an accessible way to build foundational knowledge in areas like geology, meteorology, and environmental science. These programs are often flexible and cater to working students.

Cost is a major concern for many learners. Fortunately, there are options such as the cheapest tuition online college institutions, where students can pursue quality education without incurring heavy debt. Budget-friendly programs make it easier to gain credentials and transition into the job market.

Academic performance challenges need not be a barrier either. Numerous online colleges that accept low gpa provide chances for students to improve their skills and complete degrees, ensuring more inclusive access to Earth Science studies and careers.

Specialized skills, such as Geographic Information Systems (GIS), are highly valued in Earth Science professions. Students can enhance their expertise through the best gis programs available online, gaining hands-on experience with mapping and spatial analysis tools.

By leveraging these educational opportunities, aspiring Earth Scientists can effectively prepare for impactful roles in research, environmental management, and geospatial technology.

Best Scientists Contributing to This Journal