Editor's note: This article is a slightly abridged version of material that was originally published in GeoArabia. It is reprinted with permission.

This paper describes the process and tools of portfolio management employed in Petroleum Development Oman (PDO) and how these are used to screen and select prospects for drilling, set exploration targets, contribute to strategy development, and define goals for portfolio improvement.

PDO is the operator on behalf of the government (60%) and private shareholders (Shell 34%, TotalFinaElf 4%, Partex 2%) of a large concession in Oman, about 114 000 km2 (Figure 1). The company...

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