# Conventional oil and gas production: Overview

Wells on land and at sea that fuel half the world

Source page: https://www.materialinsights.org/energy/e_oil_gas_conv/overview/

What this tile covers Wells on land and at sea that bring oil and gas to the surface. Share of use 50% share of world energy supply (2024)

Share of world total energy supply captured or extracted by each method, 2024 (latest year where noted). Denominator is the Energy Institute Statistical Review 2025 total of 592.2 EJ (physical energy content method); electricity from wind, solar, hydro and geothermal is counted at output, nuclear at reactor heat. Heat and biomass flows outside EI's total are set against the same 592.2 EJ. Oil 199.05 EJ plus gas 148.60 EJ minus the unconventional estimate (52.5 EJ) = 295.1 EJ of 592.2 EJ (calculated). Likely somewhat high because non-North American shale and tight output is not removed. Source: [Statistical Review of World Energy 2025 (74th edition)](https://assets.kpmg.com/content/dam/kpmgsites/sg/pdf/2025/08/2025-statistical-review-of-world-energy.pdf), Energy Institute.

#### Key facts

| **Output** | Liquid and gaseous fuel |
|---|---|
| **Chain** | Stored chemical → mechanical (pumps, compressors) → transported chemical |

#### Included from the reference tables

- Conventional wells
- Offshore platforms
- Deepwater rigs

#### Linked to the material world
[Oil Crude oil](https://www.materialinsights.org/energy/crude_oil/)[Gas Natural gas](https://www.materialinsights.org/energy/natural_gas/)

#### Also in Fossil and nuclear
[CM Coal mining](https://www.materialinsights.org/energy/e_coal_mining/)[UOG Unconventional oil and gas](https://www.materialinsights.org/energy/e_oil_gas_unconv/)[NFR Nuclear fission reactors](https://www.materialinsights.org/energy/e_fission/)

Explore paths from here
 More on this tile in the tabs above: efficiency, techniques, resources and labour, impact on the biosphere.

## Other sections

- [Summary](https://www.materialinsights.org/energy/e_oil_gas_conv/index.md)
- [Correlation](https://www.materialinsights.org/energy/e_oil_gas_conv/correlation/index.md)
- [Efficiency](https://www.materialinsights.org/energy/e_oil_gas_conv/efficiency/index.md)
- [Techniques](https://www.materialinsights.org/energy/e_oil_gas_conv/techniques/index.md)
- [Resources and labour](https://www.materialinsights.org/energy/e_oil_gas_conv/resources/index.md)
- [Impact on the biosphere](https://www.materialinsights.org/energy/e_oil_gas_conv/biosphere/index.md)
- [Relationships](https://www.materialinsights.org/energy/e_oil_gas_conv/links/index.md)