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Oil and gas

TNO Built Environment and Geosciences TNO | Knowledge for business Geological Survey of the Netherlands PO Box 80015 3508 TA Utrecht The Netherlands The Netherlands:

SmallOil but Resourcessweet

Dutch Oilfield portfolio

562882 662882 762882

Oil production, 1960 - 2004 6104670 Legend 6104670 Dutch oil reserves in million Sm3 as at 1 January 2005 6 Oil field, stranded Area Reserves 2003 Reserves 2004 Oil field, production start in 5 years North-eastern Netherlands 16,0 16,0 5 West Netherlands 4,7 2,7 producing Oilfield Continental Shelf 17,2 15,0 4 3 abandonned Oilfield Total Netherlands 37,9 33,7 3 million Sm 2

1 6004670 6004670 0 60 62 64 66 68 70 72 74 76 78 80 82 84 86 88 90 92 94 96 98 200002 04 year Continental Shelf Production licence Rijswijk (West Netherlands) Production licence Schoonebeek (North-eastern Netherlands)

3 Number of proven oil accumulations as at 1 January 2004 Oil reserves and cumulative production in million Sm 1970-2005 140 Oil accumulation Territory Continental Shelf Producing 3 9 120 Closed in 1 - 5904670 5904670 100 Start of production between 3 2005 and 2009 - 1 80 Continental Shelf North-eastern Start of production unknown - - 60 Netherlands Production ceased 7 1 million Sm Sub-economi 11 14 40 Total 22 25 20

0 70 72 74 76 78 80 82 84 86 88 90 92 94 96 98 2000 02 04 year Remaining reserves 5804670 5804670 Cumulative production

West Netherlands

562882 662882 762882

562882 662882 762882 6104670 6104670

Legend

Dutch Oil plays Oil field

Distribution Posidonia oil source rock Geological time scale with composite stratigraphic column of the Netherlands and the Continental Shelf

T ime in Era Period Epoch or Productive rock units Occurence of oil millions Formation and gas of years Netherlands Continental

territory Shelf 6004670 6004670 2.4 Quaternary Upper sands Upper North Sea Neogene

Middle North Sea Tertiary Paleogene Lower North Sea Dongen

65 Ekofisk

Upper Ommelanden Ommelanden chalk Cretaceous Texel Cretaceous Holland Holland Greensand Lower Cretaceous Vlieland Vlieland Sandstone Delfland Clay Deep Coevorden 143 Various Scruff formations Upper Jurassic Lower and Upper Graben

Jurassic Middle Jurassic 5904670 5904670 Middle Werkendam Altena Posidonia Lower Jurassic 208 Upper Triassic Middle Triassic Röt Röt Fringe Sandstone Lower Triassic Low. Main & Solling 245 Z3 Carbonate Upper Z2 Carbonate Zechstein Permian Upper Slochteren Formation Lower Permian Lower Rotliegend 290 Stephanian Various sandstone Westphalian Limburg units in the Westphalian Limburg Group Silesian Basal Namurian Carboniferous Namurian

Dinantian 363 5804670 5804670

Devonian

Paleozoic Mesozoic Cenozoic 409

Silurian

439 Clay-claystone Anhydrite Gas

Ordovician Limestone Rock salt Oil

510 Marl Dolomite Gas and/or oil Sandstone Volcanic rocks Jurassic sourcerock Cambrian Coal seams 570 distribution (Posidonia) vs Precambrian location of oil fields 562882 662882 762882 Poster Mijnlieff 05mj-05 Poster