Pegasus

In Development

Discovered in 2025 by ExxonMobil

View on Map Block 10
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Reserves (Est.)
7-9 (with Glaucus)
tcf
Range
4-5
tcf low-high
Discovery
2025
year
Water Depth
1,921
meters

Overview

Discovered by ExxonMobil and QatarEnergy in Block 10, announced 7 July 2025 (drilled by the Valaris DS-9, ~350 m gas column, 1,921 m water depth). Not yet officially quantified on its own (unofficially ~5 tcf of the combined 7–9 tcf with Glaucus); both fields were declared a commercial discovery on 30 June 2026. An appraisal rig is under contract with delivery expected around December 2026, and appraisal drilling is the critical path to FEED.

Development Status

In Development

Field development plan approved, infrastructure under construction.

Discovered
Appraised
In Development
Producing

Wells

Consortium

Other Discoveries in Block 10

Located in

Block 10
Operated by ExxonMobil

Technical Data

Discovery
2025
Water Depth
1,921m
Reserves (Low)
4 tcf
Reserves (High)
5 tcf
Coordinates
33.44°N, 31.65°E

Latest Energy News

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Key Events

Jun 30, 2026
Block 10 Fields Declared Commercial

Cyprus, ExxonMobil and QatarEnergy sign a Declaration of Commercial Discovery for the Glaucus and Pegasus fields (Block...

infrastructure
Jul 7, 2025
Pegasus Gas Discovery in Block 10

ExxonMobil and QatarEnergy announce the Pegasus-1 discovery in Block 10, drilled by the Valaris DS-9. Together with the...

discovery