WallStSmart

Diamondback Energy Inc (FANG)vsRiley Exploration Permian Inc (REPX)

VS

Smart Verdict

WallStSmart Research — data-driven comparison

Diamondback Energy Inc generates 3547% more annual revenue ($14.29B vs $391.98M). REPX leads profitability with a 41.0% profit margin vs 11.6%. REPX appears more attractively valued with a PEG of 2.84. REPX earns a higher WallStSmart Score of 72/100 (B).

FANG

Hold

45

out of 100

Grade: D+

Growth: 5.3Profit: 4.0Value: 4.7Quality: 3.3
Piotroski: 1/9Altman Z: 1.24

REPX

Strong Buy

72

out of 100

Grade: B

Growth: 4.7Profit: 9.5Value: 7.3Quality: 5.0
IV

Intrinsic Value Comparison

Multi-model valuation · Graham Formula

FANGSignificantly Overvalued (-29.4%)

Margin of Safety

-29.4%

Fair Value

$130.64

Current Price

$196.02

$65.38 premium

UndervaluedFair: $130.64Overvalued
REPXUndervalued (+92.5%)

Margin of Safety

+92.5%

Fair Value

$356.15

Current Price

$36.11

$320.04 discount

UndervaluedFair: $356.15Overvalued

Key Strengths & Concerns

Side-by-side fundamental analysis

Key Strengths

FANG3 strengths · Avg: 8.3/10
Market CapQuality
$55.59B9/10

Large-cap with strong market position

Price/BookValuation
1.5x8/10

Reasonable price relative to book value

Free Cash FlowQuality
$1.40B8/10

Generating 1.4B in free cash flow

REPX5 strengths · Avg: 9.4/10
P/E RatioValuation
4.6x10/10

Attractively priced relative to earnings

Price/BookValuation
1.2x10/10

Reasonable price relative to book value

Profit MarginProfitability
41.0%10/10

Keeps 41 of every $100 in revenue as profit

Return on EquityProfitability
28.1%9/10

Every $100 of equity generates 28 in profit

Operating MarginProfitability
27.4%8/10

Strong operational efficiency at 27.4%

Areas to Watch

FANG4 concerns · Avg: 3.0/10
P/E RatioValuation
34.4x4/10

Premium valuation, high expectations priced in

Return on EquityProfitability
3.7%3/10

ROE of 3.7% — below average capital efficiency

Piotroski F-ScoreQuality
1/93/10

Weak financial health signals

PEG RatioValuation
103.602/10

Expensive relative to growth rate

REPX3 concerns · Avg: 2.3/10
Market CapQuality
$764.08M3/10

Smaller company, higher risk/reward

PEG RatioValuation
2.842/10

Expensive relative to growth rate

Revenue GrowthGrowth
-5.3%2/10

Revenue declined 5.3%

Comparative Analysis Report

WallStSmart Research

Bull Case : FANG

The strongest argument for FANG centers on Market Cap, Price/Book, Free Cash Flow.

Bull Case : REPX

The strongest argument for REPX centers on P/E Ratio, Price/Book, Profit Margin. Profitability is solid with margins at 41.0% and operating margin at 27.4%.

Bear Case : FANG

The primary concerns for FANG are P/E Ratio, Return on Equity, Piotroski F-Score.

Bear Case : REPX

The primary concerns for REPX are Market Cap, PEG Ratio, Revenue Growth.

Key Dynamics to Monitor

REPX carries more volatility with a beta of 1.26 — expect wider price swings.

REPX is growing revenue faster at -5.3% — sustainability is the question.

FANG generates stronger free cash flow (1.4B), providing more financial flexibility.

Monitor OIL & GAS E&P industry trends, competitive dynamics, and regulatory changes.

Bottom Line

REPX scores higher overall (72/100 vs 45/100), backed by strong 41.0% margins. Both earn "Strong Buy" and "Hold" ratings respectively — the choice depends on your investment horizon and risk tolerance.

This analysis is generated from publicly available financial data. Not financial advice.

Diamondback Energy Inc

ENERGY · OIL & GAS E&P · USA

Diamondback Energy is a company engaged in hydrocarbon exploration and headquartered in Midland, Texas.

Riley Exploration Permian Inc

ENERGY · OIL & GAS E&P · USA

Riley Exploration Permian, Inc., an independent oil and natural gas company, is engaged in the acquisition, exploration, development and production of oil, natural gas and natural gas liquids primarily in the Permian Basin. The company is headquartered in Oklahoma City, Oklahoma.

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