Asset report

Kenya North-Central Gregory Rift exploration basin

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Report summary

Located in northwestern Kenya, the North-Central Gregory Rift forms the eastern arm of the East Africa Rift system. The basin covers over 100,000 km2 of mountainous land around and between lakes Turkana and Victoria. It extends into Ethiopia and territory disputed with South Sudan. The basin is an emerging exploration region, with eight discoveries made in the last four years. Tullow Oil's large Ngamia oil field find in 2012 opened the play and highlighted the basins potential; to date 665 million barrels of oil resources have been discovered in the South Lokichar sub-basin along a trend known as the Lokichar 'String of Pearls'. This level of prospectivity makes the basin attractive for explorers. At present most blocks in the basin are licensed, but there is potential for further farm-ins, and acreage will be opened up through partial relinquishments. Developments will ultimately be dependent upon construction of a major new export pipeline.

What's included

This report contains

  • Document

    Kenya North - Central Gregory

    ZIP 2.62 MB

  • Document

    Kenya North Central Gregory Rift exploration basin

    PDF 741.44 KB

  • Document

    Kenya North Central Gregory Rift exploration basin

    ZIP 3.23 MB

Table of contents

Tables and charts

This report includes 51 images and tables including:


  • Value creation versus investment (TYP period)
  • Value creation versus investment (Outlook)
  • Exploration history map
  • Location maps: Image 2
  • Licensed exploration acreage
  • Expiry forecast of current licences
  • Gross exploration wells completed by operator
  • Net exploration wells completed by participant
  • Summary and key issues: Image 3
  • Exploration: Image 1
  • Cumulative exploration wells by play
  • Exploration: Image 3
  • Discoveries by license year and drilling year
  • Basin creaming curve
  • Reserves and resources: Image 2
  • Reserves and resources: Image 3
  • Cumulative discoveries by play
  • Cumulative volumes discovered by play
  • Exploration and appraisal spend
  • Exploration spend per well and average well depth
  • Value creation, exploration spend and volume discovered
  • Returns by drilling year
  • Breakeven price versus prospect size
  • Value creation versus investment
  • Economic analysis: Image 5
  • Economic analysis: Image 6
  • Economic analysis: Image 7
  • Economic analysis: Image 8
  • Tertiary Onshore


  • Key facts: Table 1
  • Assumptions
  • Key licence holders
  • Key companies: Table 2
  • Key play characteristics
  • Key basin data
  • Top discoveries (TYP period)
  • Forecast data by Play (Outlook)
  • Yet-to-find costs and underlying development assumptions
  • Costs: Table 1
  • Summary of discovery and development costs
  • Typical fiscal terms
  • Economic assumptions: Table 1
  • Economic analysis: Table 1
  • Full-cycle economic analysis
  • Key companies: Table 3
  • Reserves and resources: Table 4
  • Reserves and resources: Table 5
  • Model field pool size distribution
  • Reserves and resources: Table 7
  • Tertiary Onshore
  • Average value of future discoveries and implied acreage value

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