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

MPLX LP is the larger business by last-quarter revenue ($2.5B vs $2.4B, roughly 1.0× Zoetis). MPLX LP runs the higher net margin — 49.1% vs 25.3%, a 23.8% gap on every dollar of revenue. On growth, Zoetis posted the faster year-over-year revenue change (3.0% vs 1.4%). MPLX LP produced more free cash flow last quarter ($782.0M vs $732.0M). Over the past eight quarters, MPLX LP's revenue compounded faster (6.2% CAGR vs 4.4%).

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.

Zoetis Inc. (/zō-EH-tis/) is an American drug company, the world's largest producer of medicine and vaccinations for pets and livestock. The company was a subsidiary of Pfizer, the world's largest drug maker, but with Pfizer's spinoff of its 83% interest in the firm it is now a completely independent company. The company directly markets its products in approximately 45 countries, and sells them in more than 100 countries. Operations outside the United States accounted for 50% of the total re...

MPLX vs ZTS — Head-to-Head

Bigger by revenue
MPLX
MPLX
1.0× larger
MPLX
$2.5B
$2.4B
ZTS
Growing faster (revenue YoY)
ZTS
ZTS
+1.6% gap
ZTS
3.0%
1.4%
MPLX
Higher net margin
MPLX
MPLX
23.8% more per $
MPLX
49.1%
25.3%
ZTS
More free cash flow
MPLX
MPLX
$50.0M more FCF
MPLX
$782.0M
$732.0M
ZTS
Faster 2-yr revenue CAGR
MPLX
MPLX
Annualised
MPLX
6.2%
4.4%
ZTS

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
MPLX
MPLX
ZTS
ZTS
Revenue
$2.5B
$2.4B
Net Profit
$1.2B
$603.0M
Gross Margin
70.2%
Operating Margin
60.5%
31.9%
Net Margin
49.1%
25.3%
Revenue YoY
1.4%
3.0%
Net Profit YoY
8.5%
3.8%
EPS (diluted)
$1.37

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
ZTS
ZTS
Q4 25
$2.5B
$2.4B
Q3 25
$2.5B
$2.4B
Q2 25
$2.4B
$2.5B
Q1 25
$2.5B
$2.2B
Q4 24
$2.4B
$2.3B
Q3 24
$2.3B
$2.4B
Q2 24
$2.3B
$2.4B
Q1 24
$2.2B
$2.2B
Net Profit
MPLX
MPLX
ZTS
ZTS
Q4 25
$1.2B
$603.0M
Q3 25
$1.6B
$721.0M
Q2 25
$1.1B
$718.0M
Q1 25
$1.1B
$631.0M
Q4 24
$1.1B
$581.0M
Q3 24
$1.0B
$682.0M
Q2 24
$1.2B
$624.0M
Q1 24
$1.0B
$599.0M
Gross Margin
MPLX
MPLX
ZTS
ZTS
Q4 25
70.2%
Q3 25
71.5%
Q2 25
73.6%
Q1 25
72.0%
Q4 24
69.5%
Q3 24
70.6%
Q2 24
71.7%
Q1 24
70.6%
Operating Margin
MPLX
MPLX
ZTS
ZTS
Q4 25
60.5%
31.9%
Q3 25
73.2%
37.0%
Q2 25
54.9%
36.7%
Q1 25
55.5%
36.5%
Q4 24
55.6%
31.6%
Q3 24
54.4%
36.6%
Q2 24
62.9%
33.0%
Q1 24
57.6%
34.1%
Net Margin
MPLX
MPLX
ZTS
ZTS
Q4 25
49.1%
25.3%
Q3 25
63.2%
30.0%
Q2 25
44.9%
29.2%
Q1 25
46.2%
28.4%
Q4 24
45.9%
25.1%
Q3 24
44.6%
28.6%
Q2 24
52.6%
26.4%
Q1 24
46.7%
27.4%
EPS (diluted)
MPLX
MPLX
ZTS
ZTS
Q4 25
$1.37
Q3 25
$1.63
Q2 25
$1.61
Q1 25
$1.41
Q4 24
$1.29
Q3 24
$1.50
Q2 24
$1.37
Q1 24
$1.31

Balance Sheet & Financial Strength

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

Metric
MPLX
MPLX
ZTS
ZTS
Cash + ST InvestmentsLiquidity on hand
$2.1B
Total DebtLower is stronger
$24.2B
Stockholders' EquityBook value
$3.3B
Total Assets
$43.0B
$15.5B
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
MPLX
MPLX
ZTS
ZTS
Q4 25
$2.1B
Q3 25
$1.8B
$2.1B
Q2 25
$1.4B
$1.4B
Q1 25
$2.5B
$1.7B
Q4 24
$1.5B
$2.0B
Q3 24
$2.4B
$1.7B
Q2 24
$2.5B
$1.6B
Q1 24
$385.0M
$2.0B
Total Debt
MPLX
MPLX
ZTS
ZTS
Q4 25
$24.2B
Q3 25
$24.1B
Q2 25
$19.7B
Q1 25
$19.7B
Q4 24
$19.3B
Q3 24
$19.3B
Q2 24
$19.2B
Q1 24
$18.8B
Stockholders' Equity
MPLX
MPLX
ZTS
ZTS
Q4 25
$3.3B
Q3 25
$5.4B
Q2 25
$5.0B
Q1 25
$4.7B
Q4 24
$4.8B
Q3 24
$5.2B
Q2 24
$5.0B
Q1 24
$5.1B
Total Assets
MPLX
MPLX
ZTS
ZTS
Q4 25
$43.0B
$15.5B
Q3 25
$43.2B
$15.2B
Q2 25
$37.8B
$14.5B
Q1 25
$39.0B
$14.1B
Q4 24
$37.5B
$14.2B
Q3 24
$38.5B
$14.4B
Q2 24
$38.4B
$14.2B
Q1 24
$36.5B
$14.3B

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
ZTS
ZTS
Operating Cash FlowLast quarter
$1.5B
$893.0M
Free Cash FlowOCF − Capex
$782.0M
$732.0M
FCF MarginFCF / Revenue
31.9%
30.7%
Capex IntensityCapex / Revenue
29.1%
6.7%
Cash ConversionOCF / Net Profit
1.24×
1.48×
TTM Free Cash FlowTrailing 4 quarters
$4.1B
$2.3B

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
MPLX
MPLX
ZTS
ZTS
Q4 25
$1.5B
$893.0M
Q3 25
$1.4B
$938.0M
Q2 25
$1.7B
$486.0M
Q1 25
$1.2B
$587.0M
Q4 24
$1.7B
$905.0M
Q3 24
$1.4B
$951.0M
Q2 24
$1.6B
$502.0M
Q1 24
$1.3B
$595.0M
Free Cash Flow
MPLX
MPLX
ZTS
ZTS
Q4 25
$782.0M
$732.0M
Q3 25
$905.0M
$805.0M
Q2 25
$1.4B
$308.0M
Q1 25
$979.0M
$438.0M
Q4 24
$1.4B
$689.0M
Q3 24
$1.1B
$784.0M
Q2 24
$1.4B
$370.0M
Q1 24
$1.0B
$455.0M
FCF Margin
MPLX
MPLX
ZTS
ZTS
Q4 25
31.9%
30.7%
Q3 25
36.8%
33.5%
Q2 25
60.9%
12.5%
Q1 25
39.8%
19.7%
Q4 24
56.6%
29.7%
Q3 24
48.4%
32.8%
Q2 24
60.0%
15.7%
Q1 24
47.7%
20.8%
Capex Intensity
MPLX
MPLX
ZTS
ZTS
Q4 25
29.1%
6.7%
Q3 25
21.4%
5.5%
Q2 25
12.8%
7.2%
Q1 25
10.9%
6.7%
Q4 24
12.7%
9.3%
Q3 24
11.9%
7.0%
Q2 24
9.4%
5.6%
Q1 24
11.7%
6.4%
Cash Conversion
MPLX
MPLX
ZTS
ZTS
Q4 25
1.24×
1.48×
Q3 25
0.92×
1.30×
Q2 25
1.64×
0.68×
Q1 25
1.10×
0.93×
Q4 24
1.51×
1.56×
Q3 24
1.35×
1.39×
Q2 24
1.32×
0.80×
Q1 24
1.27×
0.99×

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%

ZTS
ZTS

Other$1.3B56%
Livestock$234.0M10%
Pain Sedation$209.0M9%
Other Pharmaceuticals$188.0M8%
Swine$125.0M5%
Poultry$117.0M5%
Fish$81.0M3%
Other Non Pharmaceuticals$70.0M3%
Manufactured Product Other$18.0M1%
Medicated Feed Additives$12.0M1%

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