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Side-by-side financial comparison of MPLX LP (MPLX) and Occidental Petroleum (OXY). Click either name above to swap in a different company.

MPLX LP is the larger business by last-quarter revenue ($2.5B vs $1.7B, roughly 1.5× Occidental Petroleum). MPLX LP runs the higher net margin — 49.1% vs 6.9%, a 42.2% gap on every dollar of revenue. On growth, MPLX LP posted the faster year-over-year revenue change (1.4% vs -75.8%). Occidental Petroleum produced more free cash flow last quarter ($1.9B vs $782.0M). Over the past eight quarters, MPLX LP's revenue compounded faster (6.2% CAGR vs -50.4%).

MarkWest Energy Partners, L.P., a subsidiary of MPLX LP, is a natural gas gathering, processing and transportation company master limited partnership of the United States. In 1988, the company was founded in Denver, Colorado and grew to be Colorado's 13th largest company. In 2015 it was acquired by MPLX, itself a subsidiary of Marathon Petroleum.

Occidental Petroleum Corporation is an American company engaged in hydrocarbon exploration in the United States and the Middle East as well as petrochemical manufacturing in the United States, Canada, and Chile. It is incorporated under the Delaware General Corporation Law and headquartered in Houston. The company ranked 183rd on the 2021 Fortune 500 based on its 2020 revenues and 670th on the 2021 Forbes Global 2000.

MPLX vs OXY — Head-to-Head

Bigger by revenue
MPLX
MPLX
1.5× larger
MPLX
$2.5B
$1.7B
OXY
Growing faster (revenue YoY)
MPLX
MPLX
+77.2% gap
MPLX
1.4%
-75.8%
OXY
Higher net margin
MPLX
MPLX
42.2% more per $
MPLX
49.1%
6.9%
OXY
More free cash flow
OXY
OXY
$1.1B more FCF
OXY
$1.9B
$782.0M
MPLX
Faster 2-yr revenue CAGR
MPLX
MPLX
Annualised
MPLX
6.2%
-50.4%
OXY

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
MPLX
MPLX
OXY
OXY
Revenue
$2.5B
$1.7B
Net Profit
$1.2B
$114.0M
Gross Margin
Operating Margin
60.5%
-6.5%
Net Margin
49.1%
6.9%
Revenue YoY
1.4%
-75.8%
Net Profit YoY
8.5%
195.0%
EPS (diluted)
$-0.07

Green = leading value per metric. Periods may differ when fiscal calendars don't align.

8-Quarter Revenue & Profit Trend

Side-by-side quarterly history. Quarters aligned by calendar period so offset fiscal years line up.

Revenue
MPLX
MPLX
OXY
OXY
Q4 25
$2.5B
$1.7B
Q3 25
$2.5B
$6.7B
Q2 25
$2.4B
$6.3B
Q1 25
$2.5B
$6.9B
Q4 24
$2.4B
$6.9B
Q3 24
$2.3B
$7.0B
Q2 24
$2.3B
$6.8B
Q1 24
$2.2B
$6.7B
Net Profit
MPLX
MPLX
OXY
OXY
Q4 25
$1.2B
$114.0M
Q3 25
$1.6B
$842.0M
Q2 25
$1.1B
$468.0M
Q1 25
$1.1B
$945.0M
Q4 24
$1.1B
$-120.0M
Q3 24
$1.0B
$1.1B
Q2 24
$1.2B
$1.2B
Q1 24
$1.0B
$888.0M
Gross Margin
MPLX
MPLX
OXY
OXY
Q4 25
Q3 25
87.8%
Q2 25
86.6%
Q1 25
88.4%
Q4 24
89.0%
Q3 24
88.5%
Q2 24
87.9%
Q1 24
89.0%
Operating Margin
MPLX
MPLX
OXY
OXY
Q4 25
60.5%
-6.5%
Q3 25
73.2%
17.4%
Q2 25
54.9%
11.7%
Q1 25
55.5%
19.3%
Q4 24
55.6%
-2.5%
Q3 24
54.4%
22.7%
Q2 24
62.9%
24.0%
Q1 24
57.6%
15.0%
Net Margin
MPLX
MPLX
OXY
OXY
Q4 25
49.1%
6.9%
Q3 25
63.2%
12.6%
Q2 25
44.9%
7.4%
Q1 25
46.2%
13.7%
Q4 24
45.9%
-1.7%
Q3 24
44.6%
16.2%
Q2 24
52.6%
17.2%
Q1 24
46.7%
13.2%
EPS (diluted)
MPLX
MPLX
OXY
OXY
Q4 25
$-0.07
Q3 25
$0.65
Q2 25
$0.26
Q1 25
$0.77
Q4 24
$-0.32
Q3 24
$0.98
Q2 24
$1.03
Q1 24
$0.75

Balance Sheet & Financial Strength

Snapshot of each company's liquidity, leverage and book value from the latest quarter.

Metric
MPLX
MPLX
OXY
OXY
Cash + ST InvestmentsLiquidity on hand
$2.1B
$2.0B
Total DebtLower is stronger
$24.2B
$20.6B
Stockholders' EquityBook value
$36.0B
Total Assets
$43.0B
$84.2B
Debt / EquityLower = less leverage
0.57×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
MPLX
MPLX
OXY
OXY
Q4 25
$2.1B
$2.0B
Q3 25
$1.8B
$2.2B
Q2 25
$1.4B
$2.3B
Q1 25
$2.5B
$2.6B
Q4 24
$1.5B
$2.1B
Q3 24
$2.4B
$1.8B
Q2 24
$2.5B
$1.8B
Q1 24
$385.0M
$1.3B
Total Debt
MPLX
MPLX
OXY
OXY
Q4 25
$24.2B
$20.6B
Q3 25
$24.1B
$20.8B
Q2 25
$19.7B
$23.3B
Q1 25
$19.7B
$24.0B
Q4 24
$19.3B
$25.0B
Q3 24
$19.3B
$25.5B
Q2 24
$19.2B
$18.4B
Q1 24
$18.8B
$18.5B
Stockholders' Equity
MPLX
MPLX
OXY
OXY
Q4 25
$36.0B
Q3 25
$36.3B
Q2 25
$35.7B
Q1 25
$34.7B
Q4 24
$34.2B
Q3 24
$34.7B
Q2 24
$32.1B
Q1 24
$30.8B
Total Assets
MPLX
MPLX
OXY
OXY
Q4 25
$43.0B
$84.2B
Q3 25
$43.2B
$83.5B
Q2 25
$37.8B
$84.4B
Q1 25
$39.0B
$85.0B
Q4 24
$37.5B
$85.4B
Q3 24
$38.5B
$85.8B
Q2 24
$38.4B
$76.2B
Q1 24
$36.5B
$74.3B
Debt / Equity
MPLX
MPLX
OXY
OXY
Q4 25
0.57×
Q3 25
0.57×
Q2 25
0.65×
Q1 25
0.69×
Q4 24
0.73×
Q3 24
0.73×
Q2 24
0.57×
Q1 24
0.60×

Cash Flow & Capital Efficiency

How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.

Metric
MPLX
MPLX
OXY
OXY
Operating Cash FlowLast quarter
$1.5B
$2.6B
Free Cash FlowOCF − Capex
$782.0M
$1.9B
FCF MarginFCF / Revenue
31.9%
113.4%
Capex IntensityCapex / Revenue
29.1%
45.4%
Cash ConversionOCF / Net Profit
1.24×
23.11×
TTM Free Cash FlowTrailing 4 quarters
$4.1B
$4.1B

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
MPLX
MPLX
OXY
OXY
Q4 25
$1.5B
$2.6B
Q3 25
$1.4B
$2.8B
Q2 25
$1.7B
$3.0B
Q1 25
$1.2B
$2.1B
Q4 24
$1.7B
$3.4B
Q3 24
$1.4B
$3.7B
Q2 24
$1.6B
$2.4B
Q1 24
$1.3B
$2.0B
Free Cash Flow
MPLX
MPLX
OXY
OXY
Q4 25
$782.0M
$1.9B
Q3 25
$905.0M
$1.0B
Q2 25
$1.4B
$962.0M
Q1 25
$979.0M
$240.0M
Q4 24
$1.4B
$1.6B
Q3 24
$1.1B
$2.0B
Q2 24
$1.4B
$623.0M
Q1 24
$1.0B
$224.0M
FCF Margin
MPLX
MPLX
OXY
OXY
Q4 25
31.9%
113.4%
Q3 25
36.8%
15.3%
Q2 25
60.9%
15.2%
Q1 25
39.8%
3.5%
Q4 24
56.6%
23.0%
Q3 24
48.4%
28.5%
Q2 24
60.0%
9.2%
Q1 24
47.7%
3.3%
Capex Intensity
MPLX
MPLX
OXY
OXY
Q4 25
29.1%
45.4%
Q3 25
21.4%
26.5%
Q2 25
12.8%
31.6%
Q1 25
10.9%
27.6%
Q4 24
12.7%
26.0%
Q3 24
11.9%
24.0%
Q2 24
9.4%
26.0%
Q1 24
11.7%
26.5%
Cash Conversion
MPLX
MPLX
OXY
OXY
Q4 25
1.24×
23.11×
Q3 25
0.92×
3.31×
Q2 25
1.64×
6.32×
Q1 25
1.10×
2.27×
Q4 24
1.51×
Q3 24
1.35×
3.23×
Q2 24
1.32×
2.05×
Q1 24
1.27×
2.26×

Financial Flow Comparison

Revenue → gross profit → operating profit → net profit for each company.

Revenue Breakdown by Segment

MPLX
MPLX

Services$746.0M30%
Other$675.0M28%
Products$492.0M20%
Nonrelated Party$186.0M8%
Related Party$151.0M6%
Crude Oil And Products Logistics$104.0M4%
Service Other$56.0M2%
Natural Gas And NGL Services$41.0M2%

OXY
OXY

Segment breakdown not available.

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