Outline. Introduction The 8th Licensing Round Overview of significant plays in the Danish Central Graben

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2 Outline Introduction The 8th Licensing Round Overview of significant plays in the Danish Central Graben

3 Important Milestones in 2017 New Strategy for the Future of the Danish Oil and Gas Sector New North Sea Agreement in Danish Parliament Decision on redevelopment of the Tyra field

Reduce barriers Optimised use of infrastructure Increased third party

4 New Strategy Government and the Upstream Industry Two goals: Increase activity level More frequent licensing rounds Increased access to data Reduce barriers Optimised use of infrastructure Increased third party access Establish forum for cooperation between operators Available online

5 New North Sea Agreement The political agreement supports: New investments in oil and gas extraction in the Danish part of the North Sea, including a full rebuilding of the Tyra facilities Third party access to infrastructure How: By reducing tax on oil and gas extraction for all companies for a limited time window in the period By implementing changes in the legislation to improve the possibilities for third party access to infrastructure

6 Existing Fields & Infrastructure

7 Production and Domestic Consumption bn. Nm³ gas m. m³ oil Tyr 2018 Tyra Redevelopment

8 Active Licenses in the Central Graben Area th Round 7th Round 20 6th Round 15 4th Round 10 2nd Round 3rd Round 5 1st Round

9 8th Danish Licensing Round The process ahead: Update terms and conditions (DEA) Ministers statement to the Energy Committee in Parliament Announcement Denmark Day in March 2018?

10 8th Danish Licensing Round Former Licensing Rounds: Areas offered included all unlicensed acreage Licenses granted with initial 6 year exploration term Selection criteria have focused on work programs offered Financial Conditions (as applied since 2004) Corporate income tax 25 pct. Deductible from the hydrocarbon tax base. Hydrocarbon tax - 52 pct. Allowance of 5 pct. for 6 years (a total of 30 pct.) for investments. State participation 20 pct. (not carried) No royalty No area fee

11 Overview of significant already known Plays in the Danish Central Graben Jurassic Sandstone Plays Cretaceous Chalk Plays Cenozoic Sandstone Plays Further Opportunities Summary

12 Jurassic sandstone plays Middle Jurassic fluvial - deltaic sandstone Upper Jurassic shoreface sandstone Gravity flow sandstone

13 Base Upper Jurassic structural depth map Halfgraben system showing Inversion Structural profile Deep Source Rock Burrial

14 Lulita-1 Well middle Jurassic example Lulu Fm.: Shoreface sst Bryne Fm.: Fluvial sst Oil saturation: up to 75% Porosity: ~ 20%

15 Potential Reservoir Shoreface Sandstones Kimmeridgian discoveries:

16 Gravity Flows in the Tail End Graben Fan-lobe complexes Late Volgian- Ryazanian 50 Late 100 Kimmeridgian

17 Possible sandy intervals in Lower Volgian fan lobe complex not penetrated by wells High amplitudes in uppermost fan lobe Up-dip pinch-out Fasan-1 NW E-1 5 km SE

18 HC sourcing of Jurassic sandstones M. Jurassic terrigenous oils and gas U. Jurassic marine oils Farsund Fm M. Jurassic? terrigenous gas-cond.

19 Cretaceous chalk plays Upper Cretaceous-Danian chalk Lower Cretaceous marly chalk

Chalk fields - Denmark, Norway and UK Banff Tor Ekofisk Most important hydrocarbon reservoir in the Danish North Sea Chalk and marly chalk reservoirs at a number of

20 Chalk fields - Denmark, Norway and UK Banff Tor Ekofisk Most important hydrocarbon reservoir in the Danish North Sea Chalk and marly chalk reservoirs at a number of Cretaceous and Danian stratigraphic levels Most productive is the Maastrichtian levels within structural traps The Halfdan field: a stratigraphic /dynamic trap Halfdan Field

21 Reservoir Chalk Characterised by High Porosity yet Low Permeability Permeability versus porosity The matrix has high porosity and low permeability due to the small grain size.

22 Note at Top Chalk: amplitude brightning due to high porosity phase reversal due to gas in high porosities Seismic section across the Tyra Field

23 3D view of Halfdan area - viewed from Northwest - displaying porosity cube - Albrechtsen et al., 2001

24 Cenozoic sandstone plays Paleocene and Eocene Deep Marine Sandstones Shallow Petroleum Systems in Denmark

25 Cenozoic Plays Siri Field: Deep marine sandstones Oil Schiøler et al. (2007)

26 Paleocene and Eocene sand source Mass flows and turbidite sandstone Migrating sand dunes Basinal turbidite sandstone

27 The basinal Turbidites Augusta-1 Tabita-1 T-1x NE sw Turbidite sand Oil Turbidite sand Oil Migration

28 Bright Spots in Plio-Pleistcene sequence From Pletsch et al. 2010

29 Potential Oligocene, Miocene reservoirs Lille John-1; Oil T-1x; Odderup Fm Gas and oil R-1x; Odderup Fm Gas 2 mill/ft 3 pr. day Francisca-1; Freja Mb Gas S NE

30 Examples of Neogene discoveries/shows T-1: Oil and Gas R-1: Gas Lille John-1: Oil

31 Summary 1 The Danish Central Graben is a mature area for HC exploration Thick Jurassic Source Rock as main HC source for the Jurassic, Cretaceous, and Cenozoic plays Potential for oil-generation still present at and below 5000 m depth Mid Jurassic fluvial and estuarine sandstones Late Jurassic shoreface and gravity flow sandstones HPHT Jurassic sandstone reservoirs with secondary porosity and preserved permeability due to retarded quartz overgrowths

32 Summary 2 Siri Field proves plays valid in the Cenozoic rocks and on the Ringkøbing Fyn High Main reservoirs are turbidite sands, Delta sands, and shelf sands HC s tested in the Neogene in R-1, T-1, and Lille John-1 wells DHI s are found throughout the Danish Central Graben area Mandal Formation potential along Ringkøbing Fyn High and in the Gertrud Graben The Maastrichtian Ekofisk and Tor Formations, still underexplored nonstructural traps Hod Fm, northwards from the contiguous area along the inversion structure

33 Thank you! Find us at booth no. 17 for further questions - or contact us: Licensing authority information and guidance Danish Energy Agency - / Steffen Olsen - sbo@ens.dk Geological expertise and data Geol. Surv. of Denmark and Greenland - / Mads Willumsen - mew@geus.dk

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