Asset report

Tunisia lllizi Ghadames exploration basin

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Report summary

Exploration in the Tunisian Illizi-Ghadames Basin has presented an attractive investment opportunity stimulated by a string of small but profitable discoveries which have added 193 mmboe of reserves over the last ten years. Developments have been characterised by rapid, low cost start-ups, achieved by recompleting discovery wells as producers and tapping into the well-established infrastructure network. However the average discovery size is small and in decline, reflecting the increasing maturity of the basin. The basin still offers niche explorers the opportunity to create good returns based on modest investment. However, yet-to-find estimates and potential prospect sizes are smaller than elsewhere in North Africa, and the resulting value creation is modest. In this report Wood Mackenzie examines the key issues impacting exploration in the Silurian oil play in the basin, and provides the cost and returns metrics from historical and forecast exploration activity in this play.

What's included

This report contains

  • Document

    Tunisia Illizi -

    ZIP 2.61 MB

  • Document

    Tunisia lllizi Ghadames exploration basin

    PDF 760.40 KB

  • Document

    Tunisia lllizi Ghadames exploration basin

    ZIP 3.25 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
  • Exploration wells by play
  • Licensed exploration acreage
  • Expiry forecast of current licences
  • Gross exploration wells completed by operator
  • Net exploration wells completed by participant
  • Commerciality index
  • Drilling activity by well type
  • Cumulative exploration wells by play
  • Discoveries and success rates
  • Discoveries by licence year and drilling year
  • Basin creaming curve
  • Volumes discovered by year
  • Average discovery size and volume per well by year
  • 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
  • Value creation, spend and volume discovered
  • Returns by drilling year
  • Breakeven price versus prospect size
  • Value creation versus investment
  • Cumulative discoveries by play
  • Cumulative volumes discovered by play
  • Silurian
  • Silurian
  • Value of potential discoveries
  • Unit value of potential discoveries
  • Breakeven price of exploration
  • Discount rate breakeven price sensitivities


  • Play level data
  • Assumptions
  • Key licence holders
  • Key well operators (TYP period)
  • Company success rates and discoveries
  • Key play characteristics
  • Key basin data
  • Forecast data by Play (outlook)
  • Costs: Table 1
  • Costs: Table 2
  • Typical fiscal terms
  • Reserves and resources: Table 2
  • Reserves and resources: Table 4
  • Silurian
  • Development: Table 1
  • Silurian
  • Silurian
  • Full-cycle economic analysis
  • Average value of future discoveries and implied acreage value

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