Analysis: Markwayne Mullin's purchase of COP (ConocoPhillips)

Assessment: On watch

Strong committee alignment with ConocoPhillips is diluted by evidence of routine year-end portfolio rebalancing and a lack of immediate catalysts.

Member: Markwayne Mullin
Party / state: R-OK
Chamber: Senate
Transaction: Purchase
Amount: $15,001 - $50,000
Ticker: COP
Company: ConocoPhillips
Trade date: 2025-12-29
Disclosure date: 2026-01-16
Disclosure lag: 18 days

Executive summary

Senator Markwayne Mullin, a member of the Appropriations and Armed Services committees, purchased between $15,001 and $50,000 of ConocoPhillips (COP) on December 29, 2025. This trade was part of a broader end-of-year buying spree where the member initiated or added to over 10 positions on the same day.

The purchase of COP on 2025-12-29 coincides with a massive cluster of buying activity by Senator Mullin, who executed high-value purchases in MSFT ($100k-$250k), AMZN ($100k-$250k), NVDA ($100k-$250k), and several others on the same date. This suggests a portfolio-wide rebalancing or capital deployment rather than a ticker-specific move. However, the purchase of COP (and CVX on the same day) aligns with the member's role on the Appropriations Committee, which oversees energy funding. COP was trading at $92.63 at the time of the trade, near its 52-week low, indicating a 'value' entry point. The 18-day disclosure lag is well within STOCK Act requirements.

Timeline

2025-11-15 — Senate hearing on LNG export expansion.
2025-12-29 — Markwayne Mullin purchases $15k-$50k COP.
2026-01-16 — Trade disclosed to Senate Office of Public Records.

Independent analysis of public financial disclosures. Not financial or investment advice.

Sources

Markwayne Mullin · COP · Trading news