Upstream Oil & Gas Project - 20 Year Financial Model

An upstream Oil & Gas project finds, drills, completes, and produces hydrocarbons from subsurface reservoirs. After securing mineral rights and permits, operators drill and complete wells, connect them to facilities and pipelines, and sell oil and gas at market benchmarks (WTI, Henry Hub) adjusted for quality and location. Production is highest early and declines over time; profitability depends on prices, decline behavior, well costs, operating costs, and royalty/working-interest terms.

This Financial Model forecasts a full 20-year project life for a multi-well shale development and is designed for operators, investors, lenders, and advisors who need a transparent, assumption-driven forecast with realistic scheduling and decline behavior—without sacrificing usability. The model includes a horizontal monthly development budget, a vintage-based production forecast, detailed prices & differentials, netback/boe revenue build, opex (variable and fixed), capex (D&C per well, facilities & tie-in per well, central/shared packages, roads & infrastructure, land by Lease/Purchase toggle), DD&A, taxes, debt & equity financing, and cash flow waterfalls to project IRR/NPV. The model also includes shut-in/economic-limit logic, P&A timing & cost, and clean inputs for phase gaps if you expand beyond the initial program. It provides a robust financial framework to assess project economics, manage risk, and guide strategic investment decisions.

The structure of the template follows Financial Modeling Best Practices principles and is fully customizable.

Model Structure

• General Setup Inputs
Production and Operations-related inputs, including Project Timing, Production Assumptions (Oil and Gas Production rates, Production Loss, Production Decline), Operating Assumptions (Revenue, Operating Expenses, CapEx, Wells Economic Cutoff and Closure Assumptions), Working Interest, Lease and Owner NRI, Project Financing (Equity, Debt, and Government Grants), and Tax Benefits (ITC or Tax Free period)

• Development Budget
Project Development Assumptions including Land costs (Purchase or Lease), Exploration, Wells Drilling, Roads & Infrastructure, Facilites, Development Timing, and Development Cash Flow distribution (Straight-line, S-Curve)

• Debt Schedule
Loan amortization Schedule of project’s debt including an optional moratorium and interest-only (IO) period.  

• Monthly & Quarterly Cash Flows
These 2 reports present all the operating cash flows of the project over monthly and quarterly periods. It allows users to control the timing and how the cash flows over that time.

• Annual Cash Flow
A roll-up of the monthly cash flows into annual periods from Mine Development to Net Cash Flow after taxes. 

• Performance Reports
The model includes KPIs and Performance dashboard reports assisting users to monitor project’s operations and profitability.

• Project Returns
Report presenting project unlevered and levered returns (Pre-Tax & After-Tax IRR, MOIC, Cash Outflows, Inflows and Profits)

• Investors’ Returns Waterfall
A 3-tier IRR hurdle waterfall model to distribute proceeds between investors. The report provides inputs for up to 4 different LPs with different equity contribution percentages and up to 4 different GPs with different equity contributions and equity share percentages. The first tier distributes cash flow to the partners until the LPs has achieved some defined preferred return and received a full return of capital. Assuming the preferred return hurdle is hit in tier one, cash flow is distributed in tiers two and three based on a defined promote structure and hurdle rates as outlined by the user.

• Project Executive Summary:
A high-level summary of the project’s key data, including:
– Key Project Metrics (Project Timing, Production Metrics, Payback Period, Free & Clear Return Ratio, Cash-on-Cash Ratio, DSCR)
– Uses & Sources of Cash
– Operations Summary (Revenue, Net Operating Income, Net Cash Flow)
– Project Level Return Metrics (Unlevered & Levered)
– Partnership (LP’s & GP’s) Level Returns Summary (IRR, MOIC, Cash Outflows, Cash Inflows, Profit)
– Business Performance Dashboard

Detailed instructions for the use of the model are included in the Excel file.

Help & Support

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