Reserve Replacement and Exploration Success Analysis

Reserve Replacement and Exploration Success Analysis

Goal of the analysis:

To measure how effectively a company replaces produced reserves through exploration activities and assess the overall success rate of its drilling programs.

Data required:

  • Annual production data by asset or region
  • New reserves additions (Proved, Probable, Possible) by year
  • Drilling results and well status (e.g., successful, dry, or marginal)
  • Exploration and appraisal costs
  • Geological and geophysical data on exploration targets

Detailed step-by-step instruction on how to conduct the analysis:

1. Compile production and reserves data: Collect annual production figures and new reserve additions over a specific period (e.g., last five years).

2. Calculate Reserve Replacement Ratio (RRR): Use the formula Reserves Replacement Ratio = (Total New Reserves Added / Total Production) x 100 to determine the percentage of reserves replaced.

3. Determine exploration success rate: Calculate Exploration Success Rate = (Number of Successful Wells / Total Wells Drilled) x 100 to evaluate drilling outcomes.

4. Analyze cost per barrel of new reserves: Divide total exploration and appraisal spending by new reserves added to assess cost efficiency (Cost per Barrel = Total Exploration Costs / New Reserves Added).

5. Assess geographical or play-based performance: Break down results by region or play type to identify which areas are most successful or need improvement.

6. Review technical and operational factors: Examine seismic data quality, drilling technology used, and risk management practices that may influence exploration outcomes.

7. Track changes over time: Compare annual results or multi-year averages to spot trends and identify potential issues in exploration performance.

Format of the output of analysis:

  • A time-series chart or table showing annual production, reserves additions, and Reserve Replacement Ratio
  • Exploration Success Rate by region or play type
  • Summary of cost per barrel of reserves added
  • Key findings and recommendations in a concise report

How to interpret results:

  • A Reserve Replacement Ratio consistently above 100 percent indicates the company is adding reserves equal to or greater than its production, suggesting effective exploration or acquisitions.
  • High Exploration Success Rates and favorable cost per barrel of new reserves point to robust technical capabilities and efficient capital spending.
  • Persistent underperformance or low success rates can highlight issues in geological modeling, exploration strategy, or execution.

Steps a company can take to improve on this measure:

1. Refine exploration strategy to focus on high-potential plays and leverage cutting-edge geological modeling.

2. Invest in advanced seismic imaging and data analytics to improve target selection and reduce drilling risk.

3. Enhance drilling and well completion techniques to increase the likelihood of successful wells and reduce non-productive time.

4. Conduct post-drilling reviews of successful and unsuccessful wells to identify lessons learned and refine exploration approaches.

5. Foster partnerships or acquisitions to gain access to promising acreage or leverage complementary technical expertise.

Request the PDF Download of How to Analyze an Upstream Oil Company

Table of Contents