Pioneer Natural Resources (United States)

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.

• Earth and Planetary Sciences 12.6×
• Environmental Science 4.1×
• Energy 3.7×
• Engineering 3.5×
• Computer Science 0.4×

By fractional works in all years, weighted toward what it does more of than the world: Hydraulic Fracturing, Fracture Propagation, Shale Gas Reservoirs, Optimization, Data Assimilation, Ensemble Kalman Filter, CO2 Sequestration and Nanoparticles.

By volume in 2022–2025: Drilling and Well Engineering, Reservoir Engineering and Simulation Methods, Oil and Gas Production Techniques and Seismic Imaging and Inversion Techniques.

1. 1 Drilling and Well Engineering Ocean Engineering 0 works
2. 2 Reservoir Engineering and Simulation Methods Ocean Engineering 0 works
3. 3 Oil and Gas Production Techniques Ocean Engineering 0 works
4. 4 Seismic Imaging and Inversion Techniques Geophysics 0 works
5. 5 Water Quality Monitoring and Analysis Industrial and Manufacturing Engineering 0 works
6. 6 Water Quality Monitoring Technologies Water Science and Technology 0 works
7. 7 Membrane Separation Technologies Water Science and Technology 0 works
8. 8 Seismic Waves and Analysis Geophysics 0 works
9. 9 Paleontology and Stratigraphy of Fossils Paleontology 0 works
10. 10 Hydrocarbon exploration and reservoir analysis Mechanics of Materials 0 works

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.

Output in 2018–2022 was 40% lower than in 2013–2017.