Science Explorer Back to mapMap
Discussion
Institution · Washington · United States

American Petroleum Institute

In research, American Petroleum Institute stands highest in Physical Sciences (#6,523 of 10,670 worldwide), 2022-now. Relative to its size it is most specialised in Ocean Engineering (Ocean Engineering is 31.1× its share of world research).

api.orgROR OpenAlex
World rank, 2022-now
#14,661
of 22,385 · #16,876 all time
Rank in United States
#2,073
of 3,332
Research works
3.2k
◆ 2% vs 2018-21
Citations
31k
9.8 per fractional work
Top-10% rate
7.2%
all institutions 10.0%
vs its own fields
1.03×
1.00× is exactly expected
Open access
14%
world 40%
International
36%
world 18%
American Petroleum Institute

What is American Petroleum Institute known for in research?

The fields where it stands highest, 2022-now, ranked among every institution above the floor in each field.

FieldWorld rankWhere that sitsTop-10% rateWorksAll time
Physical SciencesDomain #6,523 of 10,670 7.9%80 #12319

Each strip is that field's whole ranked pool, with the notch where American Petroleum Institute sits in it, in the colour of the band that rank falls in. The track under the rate is the rate itself: it carries no average mark, because the average differs by field (from about 6% in Dentistry to 21% in Economics).

Which fields of science does American Petroleum Institute work in?

In 2022-now, 75% of research at American Petroleum Institute is in Physical Sciences, 12% in Social Sciences. Its largest fields are Engineering (40%), Environmental Science (7%), Medicine (7%). It does 1.9× the world's share of Physical Sciences.

Physical Sciences: 103 fractional works · 74.9% of its workEngineering: 55 fractional works · 40.1% of its workOcean Engineering: 22 fractional works · 16.2% of its workMechanical Engineering: 13 fractional works · 9.1% of its workMechanics of Materials: 7 fractional works · 5.3% of its workBiomedical Engineering: 4 fractional works · 3.1% of its workElectrical and Electronic Engineering: 3 fractional works · 2.5% of its workCivil and Structural Engineering: 1 fractional works · 1.1% of its workControl and Systems Engineering: 1 fractional works · 0.8% of its workBuilding and Construction: 1 fractional works · 0.5% of its workAutomotive Engineering: 1 fractional works · 0.4% of its workMedia Technology: 0 fractional works · 0.4% of its workComputational Mechanics: 0 fractional works · 0.3% of its workSmaller subfields together: 1 fractional works · 0.6% of its workEnvironmental Science: 10 fractional works · 7.2% of its workWater Science and Technology: 2 fractional works · 1.8% of its workEnvironmental Engineering: 2 fractional works · 1.3% of its workPollution: 2 fractional works · 1.1% of its workIndustrial and Manufacturing Engineering: 2 fractional works · 1.1% of its workEnvironmental Chemistry: 1 fractional works · 0.9% of its workHealth, Toxicology and Mutagenesis: 1 fractional works · 0.7% of its workSmaller subfields together: 0 fractional works · 0.3% of its workEarth and Planetary Sciences: 8 fractional works · 6.2% of its workGeophysics: 3 fractional works · 2.1% of its workGeology: 2 fractional works · 1.4% of its workEarth-Surface Processes: 1 fractional works · 0.9% of its workGeochemistry and Petrology: 1 fractional works · 0.6% of its workAtmospheric Science: 1 fractional works · 0.5% of its workPaleontology: 1 fractional works · 0.5% of its workSmaller subfields together: 0 fractional works · 0.1% of its workMaterials Science: 8 fractional works · 5.9% of its workMaterials Chemistry: 5 fractional works · 3.4% of its workBiomaterials: 1 fractional works · 0.6% of its workPolymers and Plastics: 1 fractional works · 0.5% of its workMetals and Alloys: 1 fractional works · 0.5% of its workSurfaces, Coatings and Films: 1 fractional works · 0.5% of its workElectronic, Optical and Magnetic Materials: 0 fractional works · 0.3% of its workComputer Science: 8 fractional works · 5.7% of its workArtificial Intelligence: 3 fractional works · 2.2% of its workInformation Systems: 3 fractional works · 1.9% of its workComputer Science Applications: 1 fractional works · 0.6% of its workComputer Networks and Communications: 0 fractional works · 0.3% of its workComputer Graphics and Computer-Aided Design: 0 fractional works · 0.2% of its workHuman-Computer Interaction: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.3% of its workChemistry: 7 fractional works · 5.3% of its workAnalytical Chemistry: 3 fractional works · 2.3% of its workOrganic Chemistry: 2 fractional works · 1.4% of its workInorganic Chemistry: 1 fractional works · 0.7% of its workSpectroscopy: 1 fractional works · 0.5% of its workElectrochemistry: 0 fractional works · 0.4% of its workSmaller subfields together: 0 fractional works · 0.1% of its workEnergy: 3 fractional works · 2.3% of its workRenewable Energy, Sustainability and the Environment: 3 fractional works · 1.9% of its workEnergy Engineering and Power Technology: 0 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.1% of its workChemical Engineering: 2 fractional works · 1.4% of its workCatalysis: 1 fractional works · 1.0% of its workProcess Chemistry and Technology: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.2% of its workMathematics: 0 fractional works · 0.3% of its workStatistics and Probability: 0 fractional works · 0.3% of its workPhysics and Astronomy: 0 fractional works · 0.3% of its workNuclear and High Energy Physics: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.1% of its workSocial Sciences: 17 fractional works · 12.1% of its workSocial Sciences: 6 fractional works · 4.7% of its workEducation: 3 fractional works · 1.9% of its workSociology and Political Science: 1 fractional works · 0.9% of its workPolitical Science and International Relations: 1 fractional works · 0.5% of its workSafety Research: 1 fractional works · 0.5% of its workLaw: 0 fractional works · 0.3% of its workHuman Factors and Ergonomics: 0 fractional works · 0.2% of its workSmaller subfields together: 1 fractional works · 0.4% of its workArts and Humanities: 3 fractional works · 1.9% of its workLiterature and Literary Theory: 1 fractional works · 1.0% of its workLanguage and Linguistics: 1 fractional works · 0.6% of its workSmaller subfields together: 0 fractional works · 0.3% of its workEconomics, Econometrics and Finance: 2 fractional works · 1.8% of its workEconomics and Econometrics: 2 fractional works · 1.1% of its workGeneral Economics, Econometrics and Finance: 1 fractional works · 0.6% of its workSmaller subfields together: 0 fractional works · 0.1% of its workDecision Sciences: 2 fractional works · 1.5% of its workStatistics, Probability and Uncertainty: 2 fractional works · 1.2% of its workManagement Science and Operations Research: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.1% of its workPsychology: 2 fractional works · 1.3% of its workExperimental and Cognitive Psychology: 1 fractional works · 0.7% of its workSocial Psychology: 0 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.3% of its workBusiness, Management and Accounting: 1 fractional works · 0.8% of its workBusiness and International Management: 0 fractional works · 0.3% of its workSmaller subfields together: 1 fractional works · 0.5% of its workHealth Sciences: 12 fractional works · 8.4% of its workMedicine: 9 fractional works · 6.7% of its workOncology: 1 fractional works · 0.9% of its workRheumatology: 1 fractional works · 0.7% of its workOrthopedics and Sports Medicine: 1 fractional works · 0.7% of its workPulmonary and Respiratory Medicine: 1 fractional works · 0.6% of its workPhysiology: 1 fractional works · 0.6% of its workComplementary and alternative medicine: 1 fractional works · 0.6% of its workEpidemiology: 1 fractional works · 0.5% of its workSurgery: 1 fractional works · 0.4% of its workPharmacology: 0 fractional works · 0.3% of its workPsychiatry and Mental health: 0 fractional works · 0.3% of its workNeurology: 0 fractional works · 0.3% of its workSmaller subfields together: 1 fractional works · 0.7% of its workHealth Professions: 2 fractional works · 1.4% of its workSpeech and Hearing: 1 fractional works · 0.5% of its workRadiological and Ultrasound Technology: 1 fractional works · 0.5% of its workOccupational Therapy: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.2% of its workNursing: 0 fractional works · 0.1% of its workDentistry: 0 fractional works · 0.1% of its workLife Sciences: 6 fractional works · 4.6% of its workBiochemistry, Genetics and Molecular Biology: 3 fractional works · 2.1% of its workMolecular Biology: 1 fractional works · 0.9% of its workGenetics: 0 fractional works · 0.4% of its workMolecular Medicine: 0 fractional works · 0.4% of its workSmaller subfields together: 1 fractional works · 0.5% of its workAgricultural and Biological Sciences: 2 fractional works · 1.2% of its workPlant Science: 1 fractional works · 0.5% of its workFood Science: 0 fractional works · 0.2% of its workInsect Science: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.1% of its workImmunology and Microbiology: 1 fractional works · 0.5% of its workImmunology: 1 fractional works · 0.5% of its workSmaller subfields together: 0 fractional works · 0.0% of its workNeuroscience: 1 fractional works · 0.5% of its workBiological Psychiatry: 0 fractional works · 0.2% of its workNeurology: 0 fractional works · 0.2% of its workPharmacology, Toxicology and Pharmaceutics: 0 fractional works · 0.3% of its workPharmaceutical Science: 0 fractional works · 0.3% of its workALL ITS WORKAmericanPetroleum…137fractional works, 2022-now
Life Sciences5%Physical Sciences75%Health Sciences8%Social Sciences12%

Each ring splits the one inside it: the four domains of science, their fields, their subfields. Size is fractional works in 2022-now. Every slice is a page; the interactive view zooms down to single topics and colours each by how much more of it this institution does than the world.

Its 4 domains and 25 fields, with their numbers
    1. Engineering5540.1%
    2. Environmental Science107.2%
    3. Earth and Planetary Sciences86.2%
    4. Materials Science85.9%
    5. Computer Science85.7%
    6. Chemistry75.3%
    7. Energy32.3%
    8. Chemical Engineering21.4%
    9. Mathematics00.3%
    10. Physics and Astronomy00.3%
    1. Social Sciences64.7%
    2. Arts and Humanities31.9%
    3. Economics, Econometrics and Finance21.8%
    4. Decision Sciences21.5%
    5. Psychology21.3%
    6. Business, Management and Accounting10.8%
    1. Medicine96.7%
    2. Health Professions21.4%
    3. Nursing00.1%
    4. Dentistry00.1%
    1. Biochemistry, Genetics and Molecular Biology32.1%
    2. Agricultural and Biological Sciences21.2%
    3. Immunology and Microbiology10.5%
    4. Neuroscience10.5%
    5. Pharmacology, Toxicology and Pharmaceutics00.3%
All of science, and how each field's share has moved since 1950: the Science domain explorer

What does American Petroleum Institute specialise in?

Where its research is concentrated relative to its size: Ocean Engineering takes 31.1× the share of its output that it takes of world research.

  1. Ocean EngineeringSubfield · 22.2 works31×
← less than its size predicts1×more →

Location quotient, a volume reading rather than an impact one. It surfaces small, lopsided specialities.

Field profile

Location quotient across every field it publishes in: outside the ring is more than an institution of this size would be expected to publish, inside it is less.

Agricultural and Biological Sciences: 0.24× its world share, 2 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.40× its world share, 3 worksBiochemistry, Geneti…Immunology and Microbiology: 0.53× its world share, 1 worksImmunology and Micro…Neuroscience: 0.30× its world share, 1 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 0.86× its world share, 0 worksPharmacology, Toxico…Chemical Engineering: 4.11× its world share, 2 worksChemical EngineeringChemistry: 3.37× its world share, 7 worksChemistryComputer Science: 0.73× its world share, 8 worksComputer ScienceEarth and Planetary Sciences: 3.94× its world share, 8 worksEarth and Planetary …Energy: 2.55× its world share, 3 worksEnergyEngineering: 2.68× its world share, 55 worksEngineeringEnvironmental Science: 1.45× its world share, 10 worksEnvironmental ScienceMaterials Science: 1.70× its world share, 8 worksMaterials ScienceMathematics: 0.27× its world share, 0 worksMathematicsPhysics and Astronomy: 0.14× its world share, 0 worksPhysics and AstronomyDentistry: 0.17× its world share, 0 worksDentistryHealth Professions: 0.54× its world share, 2 worksHealth ProfessionsMedicine: 0.35× its world share, 9 worksMedicineNursing: 0.29× its world share, 0 worksNursingArts and Humanities: 0.66× its world share, 3 worksArts and HumanitiesBusiness, Management and Accounting: 0.26× its world share, 1 worksBusiness, Management…Decision Sciences: 1.61× its world share, 2 worksDecision SciencesEconomics, Econometrics and Finance: 0.83× its world share, 2 worksEconomics, Econometr…Psychology: 0.44× its world share, 2 worksPsychologySocial Sciences: 0.37× its world share, 6 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Chemical Engineering, 4.1×. Every wedge is a field page.

All 25 fields, with their numbers
  1. Chemical Engineering4.11×2 works
  2. Earth and Planetary Sciences3.94×8 works
  3. Chemistry3.37×7 works
  4. Engineering2.68×55 works
  5. Energy2.55×3 works
  6. Materials Science1.70×8 works
  7. Decision Sciences1.61×2 works
  8. Environmental Science1.45×10 works
  9. Pharmacology, Toxicology and Pharmaceutics0.86×0 works
  10. Economics, Econometrics and Finance0.83×2 works
  11. Computer Science0.73×8 works
  12. Arts and Humanities0.66×3 works
  13. Health Professions0.54×2 works
  14. Immunology and Microbiology0.53×1 works
  15. Psychology0.44×2 works
  16. Biochemistry, Genetics and Molecular Biology0.40×3 works
  17. Social Sciences0.37×6 works
  18. Medicine0.35×9 works
  19. Neuroscience0.30×1 works
  20. Nursing0.29×0 works
  21. Mathematics0.27×0 works
  22. Business, Management and Accounting0.26×1 works
  23. Agricultural and Biological Sciences0.24×2 works
  24. Dentistry0.17×0 works
  25. Physics and Astronomy0.14×0 works

Who are the top researchers at American Petroleum Institute?

Ranked on the quality score, Vikas Mittal, Ahmed Al Shoaibi and Necmettin Mungan lead among researchers whose main affiliation is American Petroleum Institute.

  1. 1 Vikas Mittal United States · #1,004,213 worldwide 11k citations · 356 works
  2. 2 Ahmed Al Shoaibi United States · #1,351,972 worldwide 3.4k citations · 121 works
  3. 3 Necmettin Mungan United States · #1,520,059 worldwide 1.4k citations · 49 works
  4. 4 W.W. Owens United States · #1,678,313 worldwide 1.8k citations · 17 works
  5. 5 F.G. McCaffery United States · #1,783,616 worldwide 801 citations · 23 works
  6. 6 Jerry J. Novosad United States · #2,364,985 worldwide 1.1k citations · 36 works
  7. 7 Selim G. Sayegh United States · #2,495,547 worldwide 1.7k citations · 52 works
  8. 8 Karin Mannhardt United States · #2,932,521 worldwide 909 citations · 29 works
  9. 9 Patrick W. Beatty United States · #2,950,336 worldwide 2k citations · 23 works
  10. 10 Naji Al Sayari United States · #3,246,472 worldwide 752 citations · 37 works
All ranked researchers at American Petroleum Institute

What are the most cited papers from American Petroleum Institute?

The most cited paper from American Petroleum Institute is "$LCL$ Filter Design and Performance Analysis for Grid-Interconnected Systems" (Александр Львович Резник, Marcelo Godoy Simões, Ahmed Al‐Durra et al., 2013), with 763 citations. Next come "A discussion on the structure and evolution of the Red Sea and the nature of the Red Sea, Gulf of Aden and Ethiopia rift junction - The shear along the Dead Sea rift" (570) and "Melamine formaldehyde: curing studies and reaction mechanism" (430).

Most cited papers
#PaperReleasedCitations
1 $LCL$ Filter Design and Performance Analysis for Grid-Interconnected Systems Александр Львович Резник, Marcelo Godoy Simões, Ahmed Al‐Durra et al. · IEEE Transactions on Industry Applications 30 Jul 2013 763
2 A discussion on the structure and evolution of the Red Sea and the nature of the Red Sea, Gulf of Aden and Ethiopia rift junction - The shear along the Dead Sea rift Raphael Freund, Zvi Garfunkel, Israel Zak et al. · Philosophical Transactions of the Royal Society of London Series A Mathematical and Physical Sciences 31 Dec 1970 570
3 Melamine formaldehyde: curing studies and reaction mechanism Dyana J Merline, Sulafudin Vukusic, Ahmed A. Abdala · Polymer Journal 17 Oct 2012 430
4 Desalination by solar powered membrane distillation systems Mohammed Rasool Qtaishat, FAWZI A. BANAT · Desalination 24 Feb 2012 425
5 Graphene/polyethylene nanocomposites: Effect of polyethylene functionalization and blending methods Hyunwoo Kim, Shingo Kobayashi, Mohd A. AbdurRahim et al. · Polymer 24 Feb 2011 395
All 61 most cited papers, with filters and sorting

Which keywords describe research at American Petroleum Institute?

By fractional works in 2022-now, weighted toward what it does more of than the world: Hydraulic Fracturing, Fracture Propagation, Shale Gas Reservoirs, Nanoparticles, Surfactants, CO2 Sequestration, Pore Structure and Porous Media.

▲ more of its work than of the world's◆ about the world's share▼ less than the world's

Size is fractional works in 2022-now in the topics tagged with each word; colour is the word's share of this institution's work against its share of the world's. The 40 words are chosen for being large and distinctive. Each links to the topic it comes from most.

All 40 words, with their numbers
  1. Nanoparticles9▲ 5.1×13 topics
  2. Hydraulic Fracturing8▲ 54×2 topics
  3. Fracture Propagation8▲ 94×1 topic
  4. Shale Gas Reservoirs8▲ 94×1 topic
  5. Machine Learning7▲ 1.48×15 topics
  6. Surfactants7▲ 50×4 topics
  7. CO2 Sequestration7▲ 25×4 topics
  8. Pore Structure6▲ 38×3 topics
  9. Porous Media6▲ 34×3 topics
  10. Shale Gas6▲ 37×2 topics
  11. Gas Permeability6▲ 46×2 topics
  12. Mudstones6▲ 60×1 topic
  13. Nanofluids6▲ 53×2 topics
  14. Thermal Maturity6▲ 60×1 topic
  15. Pore-scale Modeling6▲ 114×1 topic
  16. X-ray Computed Tomography6▲ 114×1 topic
  17. Renewable Energy6▲ 2.9×18 topics
  18. Rheological Properties5▲ 21×3 topics
  19. Vibration Analysis5▲ 14×2 topics
  20. Drilling Fluids5▲ 70×1 topic
  21. Well Integrity5▲ 70×1 topic
  22. Environmental Impact5▲ 2.1×17 topics
  23. Optimization5▲ 7.6×6 topics
  24. Data Assimilation4▲ 18×2 topics
  25. Fault Diagnosis4▲ 20×3 topics
  26. Ensemble Kalman Filter4▲ 28×1 topic
  27. Well Placement4▲ 63×1 topic
  28. Artificial Lift Systems4▲ 99×1 topic
  29. Electric Submersible Pumps4▲ 99×1 topic
  30. Petroleum3▲ 50×2 topics
  31. Biodegradation3▲ 22×4 topics
  32. Ionic Liquids3▲ 7.7×6 topics
  33. Technology Integration3▲ 6.7×4 topics
  34. Tectonics3▲ 16×3 topics
  35. Bayesian Networks2▲ 18×2 topics
  36. Asphaltenes2▲ 70×1 topic
  37. Mass Spectrometry2▲ 11×2 topics
  38. Naphthenic Acids2▲ 70×1 topic
  39. Continental Margin2▲ 24×2 topics
  40. Crustal Structure2▲ 24×2 topics

Which research topics does American Petroleum Institute publish most on?

By volume in 2022-now: Hydraulic Fracturing and Reservoir Analysis, Hydrocarbon exploration and reservoir analysis, Enhanced Oil Recovery Techniques and Drilling and Well Engineering.

Hydraulic Fracturing and Reservoir Analysis: 8 fractional worksHydrocarbon exploration and reservoir analysis: 6 fractional worksEnhanced Oil Recovery Te…6Enhanced Oil Recovery Techniques: 6 fractional worksDrilling and Well Engine…5Drilling and Well Engineering: 5 fractional worksReservoir Engineering and Simulation Methods: 4 fractional worksOil and Gas Production Techniques: 4 fractional worksPetroleum Processing and Analysis: 2 fractional worksOffshore Engineering and Technologies: 2 fractional worksRisk and Safety Analysis: 2 fractional worksInnovative Educational Techniques: 1 fractional works
Mechanical EngineeringMechanics of MaterialsOcean EngineeringAnalytical Chemistry2 others

Area is fractional works; colour is the subfield each topic belongs to.

  1. 1 Hydraulic Fracturing and Reservoir Analysis Mechanical Engineering 8 works
  2. 2 Hydrocarbon exploration and reservoir analysis Mechanics of Materials 6 works
  3. 3 Enhanced Oil Recovery Techniques Ocean Engineering 6 works
  4. 4 Drilling and Well Engineering Ocean Engineering 5 works
  5. 5 Reservoir Engineering and Simulation Methods Ocean Engineering 4 works
  6. 6 Oil and Gas Production Techniques Ocean Engineering 4 works
  7. 7 Petroleum Processing and Analysis Analytical Chemistry 2 works
  8. 8 Offshore Engineering and Technologies Ocean Engineering 2 works
  9. 9 Risk and Safety Analysis Statistics, Probability and Uncertainty 2 works
  10. 10 Innovative Educational Techniques Education 1 works

How open and international is its research?

Against the world's own shares: the tick on each track. Both are shares of its output, so they sit on one scale and can be read against each other as well as against the world.

openly available13.5%not open86.5%

World: 40% of research is openly available.

with international co-authors36.1%domestic only63.9%

World: 18% is written across borders.

How has American Petroleum Institute's research output changed?

Output in 2022-2025 was 2% higher than in 2018-2021.

still counting1990200020102020
grewheldshrank

The same series as a ribbon: one cell per year, darker for more. The line above answers how much; this answers when.

Its share of all research

Growing output can still be a shrinking share: all of science grows. This is American Petroleum Institute as a percentage of every work published that year, 0.00045% in 2024.

still counting0.0050%0.010%American Petroleum Institute0.00088% in 202519801990200020102020

Fractional works of American Petroleum Institute over all fractional works that year. How the balance of science has shifted.

How much of it reaches the world top 10%

Year by year, against all institutions in the same year.

still counting5%10%15%all institutions10.0% in 2025American Petroleum Institute9.6% in 2025200020102020

Of each year's output, the share that reached the world's 10% most cited for its field and year. Peak 9.6% in 2025.

Other research institutions in Washington

All research institutions in Washington

Share American Petroleum Institute's ranking

American Petroleum Institute on Science Explorer

A card with American Petroleum Institute's standing and the fields it leads in, for a post or a slide. A link to this page previews as the same card.

Download the card

1200 × 630 PNG, sized for social posts, drawn from the latest snapshot.

Badges for a website1Each links back here and updates with every snapshot

Research measures only: rankings here say nothing about teaching, admissions or student experience. Comparable institutions and collaboration partners have tabs of their own, above.

Discussion

Ask a question or share a note about American Petroleum Institute. Keep it to the research: no personal attacks, advertising or links. Any reader can report a post, which collapses it for everyone until it is opened.