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PIN OAK INVESTMENT ADVISORS INC

Position in MPC — Marathon Petroleum Corp

CIK 1094584 HOUSTON, TX

Position in MPC

as of Jun 30, 2026 · filed Aug 18, 2026
Position Value
$470,177
+$21,619 QoQ
Shares Held
1,839
+0.1% QoQ
Ownership
0.001%
of shares outstanding
% of Portfolio
0.36%
of 13F equity value
Holder Rank
#1,158
of 1,922 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in MPC Over Time

Shares Held

Position Value (USD)

Position in Oil & Gas Refining & Marketing

Energy · as of Jun 30, 2026

PIN OAK INVESTMENT ADVISORS INC holds $959,046 across 3 Oil & Gas Refining & Marketing names. MPC ranks #1 (49.0% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 MPC
Marathon Petroleum Corp
This page
1,839 $470,177

All Filings in MPC

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26 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $470,177 1,839
2026-03-31 $448,558 1,837
2025-12-31 $373 1,837
2025-09-30 $354,063 1,837
2025-06-30 $267 1,837
2025-03-31 $267,632 1,837
2024-12-31 $299 1,837
2024-09-30 $299,265 1,837
2024-06-30 $318,682 1,837
2024-03-31 $370,155 1,837
2023-12-31 $272,537 1,837
2023-09-30 $278,011 1,837
2023-06-30 $214,194 1,837
2023-03-31 $247,682 1,837
2022-12-31 $268,511 2,307
2022-09-30 $229,154 2,307
2022-06-30 $189,658 2,307
2022-03-31 $197,248 2,307
2021-12-31 $147,624 2,307
2021-09-30 $142,595 2,307
2021-06-30 $139,388 2,307
2021-03-31 $123,401 2,307
2020-12-31 $95,417 2,307
2020-09-30 $67,687 2,307
2020-06-30 $108,738 2,909
2020-03-31 $74,639 3,160