Earth & Environmental Sciences
oil
100%
continental shelf
91%
permitting
64%
price
63%
sea
62%
taxation
61%
gas
61%
state role
60%
economics
57%
oil industry
54%
environment market
52%
tax incentive
46%
policy
43%
market conditions
43%
contract
43%
gas industry
43%
history
35%
decommissioning
35%
cost
28%
tax
26%
natural gas
24%
state control
23%
enhanced oil recovery
21%
conservation policy
19%
ownership
19%
project
18%
health and safety
18%
infrastructure
18%
carbon
17%
gas field
17%
tariff
16%
economic impact
16%
oil field
16%
local economy
16%
gas storage
15%
empirical analysis
15%
industry
15%
fallow
14%
legislation
14%
oil exploration
14%
participation
13%
feasibility study
13%
power plant
13%
modeling
13%
carbon emission
12%
oil production
12%
incentive
12%
province
11%
hydrocarbon
9%
Engineering & Materials Science
Taxation
56%
Petroleum industry
45%
Gas industry
41%
Economics
30%
Oils
25%
Crude oil
24%
Industry
18%
Environmental regulations
16%
Costs
16%
Carbon
16%
Oil fields
13%
Drilling
10%
Health
9%
Gases
9%
Drilling rigs
8%
Energy policy
7%
Large dataset
6%
Recovery
6%
Operating costs
6%
Hydrocarbons
6%
Shale gas
5%
Pipelines
5%
Business & Economics
Petroleum
30%
Decommissioning
17%
Energy Transition
17%
Cluster Development
16%
Economic Viability
15%
Oil and Gas Industry
14%
Investment Behavior
14%
Gas
13%
Excess Returns
13%
Carbon Emissions
13%
Stock Index
12%
Taxation
12%
Oil
12%
Macroeconomic Variables
12%
Government
11%
Tax
11%
Liability
10%
Charge
10%
Economic Recovery
9%
Obligation
7%
Modeling
7%
Trading Strategies
6%
Joint Liability
6%
Investors
6%
Variable Selection
5%
Financial Security
5%
United States of America
5%