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Gabon Gabon exploration basin

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23 February 2018

Gabon Gabon exploration basin

Report summary

The Gabon Basin is bordered by the Rio Muni Basin in the north and the Lower Congo basin to the south. It comprises the vast majority of Gabon’s licensed acreage, extending from the ultra-deepwater in the west, across the continental shelf and coast to the onshore jungle interior. The shelf and onshore areas of the basin are considered relatively mature. Several exploration opportunities remain open. Onshore activity has focused on the Cretaceous pre-salt horizons, whilst offshore activity has been primarily focused on post-salt reservoirs. However, deepwater drilling in the post-salt has yielded few returns, and future activity is expected to focus on the pre-salt: Total's Diaman discovery in 2013 proved the existence of a working hydrocarbon system, which was confirmed by Shell's Leopard gas field discovery in 2014. Value will only be created from such gas finds when a viable gas monetisation scheme is developed, be it a domestic market or via LNG exports.

Table of contents

  • Key facts
    • Key issues include:
  • Location maps
  • Participation
  • Key companies
    • Play inputs – Cretaceous Onshore (pre-salt)
    • Play inputs – Cretaceous Shelf (post-salt)
    • Play inputs – Cretaceous Deepwater (pre-salt)
    • Wells drilled
    • Basin success rates
    • Volumes discovered
      • Top discoveries (TYP period)
    • Prospective resource potential
      • Play inputs
        • Creaming curve and key play data
      • Model field pool size distribution
      • Existing discoveries and modelled yet-to-find pool size distribution
    • Prospective resource costs and underlying development assumptions
    • Recent discovery costs
    • Summary of discovery and development costs
    • Licensing
    • Fiscal terms
    • Oil and gas prices
    • TYP economics
    • Outlook economics
      • Development value
      • Prospect breakeven price
      • Expected monetary value (EMV)
      • Play Economics
    • Full cycle basin economics
      • Implied acreage value

Tables and charts

This report includes 75 images and tables including:

  • Play level data
  • Assumptions
  • Value creation versus investment (TYP period)
  • Value creation versus investment (outlook)
  • Exploration history map
  • Exploration wells by play
  • Licensed exploration acreage
  • Expiry forecast of current licences
  • Key licence holders
  • Key well operators (TYP period)
  • Gross exploration wells completed by operator
  • Net exploration wells completed by participant
  • Company success rates and discoveries
  • Key play characteristics
  • Summary and key issues: Image 3
  • Key reservoir characteristics
  • Key reservoir characteristics
  • Key reservoir characteristics
  • Drilling activity by well type
  • Cumulative exploration wells by play
  • Discoveries and success rates
  • Discoveries by license year and drilling year
  • Basin creaming curve
  • Key basin data
  • Volumes discovered by year
  • Average discovery size and volume per well by year
  • Forecast data by Play (outlook)
  • Development: Table 1
  • Cretaceous Shelf (post-salt)
  • Cretaceous Onshore (pre-salt)
  • Costs: Table 1
  • Costs: Table 2
  • Exploration and appraisal spend
  • Exploration spend per well and average well depth
  • Brent and local oil price assumptions
  • Henry Hub and local gas price assumptions (Deepwater only)
  • Value creation, spend and volume discovered
  • Returns by drilling year
  • Breakeven price versus prospect size
  • Value creation versus investment
  • Full-cycle economic analysis
  • Reserves and resources: Table 2
  • Cumulative discoveries by play
  • Cumulative volumes discovered by play
  • Cretaceous Deepwater (pre-salt)
  • Cretaceous Shelf (post-salt)
  • Cretaceous Onshore (pre-salt)
  • Cretaceous Deepwater (pre-salt)
  • Cretaceous Shelf (post-salt)
  • Cretaceous Onshore (pre-salt)
  • Value of potential discoveries
  • Unit value of potential discoveries
  • Economic analysis: Image 7
  • Economic analysis: Image 8
  • Economic analysis: Image 9
  • Economic analysis: Image 10
  • Breakeven price of exploration
  • Discount rate breakeven price sensitivities
  • Economic analysis: Image 13
  • Economic analysis: Image 14
  • Economic analysis: Image 15
  • Economic analysis: Image 16
  • Cretaceous Deepwater (pre-salt)
  • Cretaceous Shelf (post-salt)
  • Cretaceous Onshore (Pre-salt)
  • Cretaceous Deepwater (pre-salt)
  • Cretaceous Shelf (post-salt)
  • Cretaceous Onshore (pre-salt)
  • Average value of future discoveries and implied acreage value
  • Cretaceous Deepwater (pre-salt)
  • Reserves and resources: Table 4
  • Cretaceous Shelf (post-salt)
  • Reserves and resources: Table 5
  • Cretaceous Onshore (pre-salt)
  • Reserves and resources: Table 6

What's included

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