How Much Does Marathon Petroleum Spend on Lobbying?

Marathon Petroleum's $6.1M in disclosed federal lobbying puts it in the mid-tier of registered filers. Spending in the seven-figure range is common for established trade groups, mid-size corporations, and advocacy organizations that maintain a steady but not aggressive presence on Capitol Hill.

Marathon Petroleum's disclosed lobbying covers 5 general issue areas — a moderate footprint. Filers in this range tend to engage on a coherent cluster of related topics rather than spreading effort across the federal agenda.

The Senate Lobbying Disclosure Act requires anyone who contacts covered federal officials on behalf of a paying client — and crosses time and dollar thresholds — to register and file quarterly. Filings are publicly available through the Senate Office of Public Records, which is the original source for every dollar figure on this page. The same filings feed downstream research at OpenSecrets, where you can cross-reference individual lobbyists, bills tracked, and related campaign contributions.

2 of 4 lobbyists reported by Marathon Petroleum (50%) disclose prior federal government service — a high revolving-door share. The LDA cover sheet flags any "covered position" the lobbyist held in the executive branch, Congress, or a senior staff role within the past two years.

Among the named bench, lobbyists with disclosed prior federal service include Sarah L. Johnson (Former Professional Staff Member, Senate Armed Services Committee); Lorraine C. Voles (Former Deputy Director, OMB). The covered-position field on LDA cover sheets captures executive-branch and senior congressional roles held within the prior two years.

Within the Energy & Natural Resources sector, Marathon Petroleum ranks #0 of 34 tracked organizations by disclosed lobbying spend. The sector leader is ExxonMobil at $46.5M; the sector average is $11.9M. Marathon Petroleum's $6.1M sits 49% below the sector average.

Marathon Petroleum's LobbySpend Influence Score of 62/100 (grade B) reflects significant federal lobbying reach. The score blends disclosed total spend, issue breadth, and revolving-door connections — lobbyists with prior federal government service. A B-grade typically means the organization is well above average on at least two of those three signals, with sustained activity over multiple years rather than a one-off spike.

Across the 5-year window from 2020 to 2024, Marathon Petroleum's annual disclosed lobbying spend has climbed meaningfully — from $1.1M in 2020 to $1.3M in 2024, a change of +19%. Step-changes of this size often coincide with major bills moving through Congress, regulatory rulemakings affecting the organization's industry, or a leadership change in the relevant committee.

Every dollar on this page comes from quarterly filings submitted under the Lobbying Disclosure Act and published by the Senate Office of Public Records. We pull those filings via the lda.senate.gov public API, deduplicate amendments, and aggregate by registrant or client across the years shown. The "amount" for each filing is the larger of reported income (for lobbying firms) or reported expenses (for in-house programs), which is the standard convention used by both the Senate's own dashboards and outside researchers including OpenSecrets.

The LobbySpend Influence Score is a composite indicator: 40% disclosed total spend, 30% number of distinct general issue areas lobbied on, and 30% share of named lobbyists with prior federal government service. The score is descriptive — it summarizes what was disclosed — and should not be read as a measure of effectiveness, ethics, or political outcomes. Read the full methodology for the exact formulas, caveats, and known limitations of LDA disclosures.