Slovenia

Investment & Operational Criteria

Key Indicators
‍

Risk Premia
‍

2.125

Outlook
‍

Neutral

Rating
‍

B|2S|±

Ranking
‍

Reserves (1P)
‍

Total
‍

mm boe

Oil
‍

Summary

Slovenia is a stable EU and eurozone member, with elections in 2026. There is no meaningful hydrocarbon production. Outlook maintained because the operating environment is stable. Outlook: Neutral. Risk premia unchanged at 2.125%.

Updated

October 10, 2026

Country Basics

Region

Europe - Central

Reserves (1P)
‍

Oil
‍

mm bbl

Gas
‍

bcf

Location

South Central Europe, bordering the Adriatic Sea, between Austria and Croatia.

Outline

Tax Regime
Type

Concession

Tax Regime
Notes

Concession (royalty/tax) regime. Hydrocarbon exploration and production rights are granted by the government as concessions under the Mining Act, with a concession fee on production value and corporate income tax (temporarily raised from 19% to 22% for 2024–2028). The only material project, Ascent Resources' Petišovci tight gas field, was held up for years by environmental permitting disputes, leading to investment treaty arbitration against Slovenia, which shows the main risk of the regime.

Investment &
Operational
Climate

Slovenia is a stable EU and eurozone member under Prime Minister Robert Golob, with parliamentary elections due in 2026. US and UK guidance cite EU regulation and a skilled workforce, but note bureaucracy and high labour taxes. Slovenia has negligible gas production. The Krško nuclear plant (co-owned with Croatia) supplies about a third of its electricity, and a second unit is being studied.

Source: ESRI, Heritage Index, HMG Foreign & Commonwealth Office, US Department of State, International Trade Administration, International Law Review, Ernst & Young, Wood Makenzie & OGA data.