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person · Reporting owner

MCCOLLUM MARK A

Disclosed activity across 7 companies

Tapewire entity
22835
SEC CIK
0001215888

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Reported relationships

Latest disclosed role at each company.

CompanyLast reported asReport datePublished
Archrock, Inc.AROC · Entity 3837DirectorApril 26, 2018April 27, 2018
HALLIBURTON COHAL · Entity 3141EVP - Chief Financial OfficerFebruary 27, 2017March 01, 2017
ONEOK INC /NEW/OKE · Entity 3002DirectorMay 20, 2026May 22, 2026
SEADRILL LtdSDRL · Entity 4207DirectorJune 03, 2026June 05, 2026
WESTLAKE CORPWLK · Entity 3555DirectorAugust 14, 2026August 17, 2026
Weatherford International plcNONE · Entity 3720Director · President and CEODecember 13, 2019December 17, 2019

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

Archrock, Inc.

Report date April 26, 2018 · Filed April 27, 2018

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect82,751 Reported balance After 2018-04-26 transaction · row 1
1 source row

Row 1 · 2018-04-26 · Grant · Acquired 2,800 · Balance 82,751

F1: Received in exchange for 2,000 common units of Archrock Partners, L.P. ("APLP") in connection with the merger of APLP with and into a wholly owned subsidiary of the Issuer (the "Merger") on April 26, 2018 (the "Effective Date"). On the Effective Date, each APLP common unit was converted into 1.4 shares of common stock of the Issuer.

Filing footnotes · ownership attribution and instrument terms

F1: Received in exchange for 2,000 common units of Archrock Partners, L.P. ("APLP") in connection with the merger of APLP with and into a wholly owned subsidiary of the Issuer (the "Merger") on April 26, 2018 (the "Effective Date"). On the Effective Date, each APLP common unit was converted into 1.4 shares of common stock of the Issuer.

HALLIBURTON CO

Report date February 27, 2017 · Filed March 01, 2017

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect204,993 Ending reported balance After 2017-02-27 transaction · row 6
6 source rows · reconciled sequence

Row 1 · 2017-02-27 · Exercise / conversion · Acquired 12,000 · Balance 216,993

Row 2 · 2017-02-27 · Sale · Disposed 12,000 · Balance 204,993

F1: The sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on February 10, 2017.

F2: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $52.62 to $53.53, inclusive. The Reporting Person undertakes to provide to Halliburton Company, any security holder of Halliburton Company, or the staff of the Securities and Exchange Commission, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (2) to this Form 4.

Row 3 · 2017-02-27 · Exercise / conversion · Acquired 33,200 · Balance 238,193

Row 4 · 2017-02-27 · Sale · Disposed 33,200 · Balance 204,993

F1: The sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on February 10, 2017.

F2: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $52.62 to $53.53, inclusive. The Reporting Person undertakes to provide to Halliburton Company, any security holder of Halliburton Company, or the staff of the Securities and Exchange Commission, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (2) to this Form 4.

Row 5 · 2017-02-27 · Exercise / conversion · Acquired 44,100 · Balance 249,093

Row 6 · 2017-02-27 · Sale · Disposed 44,100 · Balance 204,993

F1: The sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on February 10, 2017.

F2: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $52.62 to $53.53, inclusive. The Reporting Person undertakes to provide to Halliburton Company, any security holder of Halliburton Company, or the staff of the Securities and Exchange Commission, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (2) to this Form 4.

Option to Buy Common StockSEC Table II · derivative / convertible security · Conversion / exercise price $36.90 · Expires 2017-12-05Direct0 Reported balance After 2017-02-27 transaction · row 7 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 7 · 2017-02-27 · Exercise / conversion · Disposed 12,000 · Balance 0

F3: Options disposed of through exercise pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on February 10, 2017.

Option to Buy Common StockSEC Table II · derivative / convertible security · Conversion / exercise price $35.57 · Expires 2021-12-06Direct0 Reported balance After 2017-02-27 transaction · row 8 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 8 · 2017-02-27 · Exercise / conversion · Disposed 33,200 · Balance 0

F3: Options disposed of through exercise pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on February 10, 2017.

Option to Buy Common StockSEC Table II · derivative / convertible security · Conversion / exercise price $33.50 · Expires 2022-12-05Direct0 Reported balance After 2017-02-27 transaction · row 9 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 9 · 2017-02-27 · Exercise / conversion · Disposed 44,100 · Balance 0

F3: Options disposed of through exercise pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on February 10, 2017.

Option to Buy Common StockSEC Table II · derivative / convertible security · Conversion / exercise price $53.54 · Expires 2026-12-07Direct30,500 Reported balance Holding disclosure · report date 2017-02-27 · row 10 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 10 · Balance 30,500

Option to Buy Common StockSEC Table II · derivative / convertible security · Conversion / exercise price $38.95 · Expires 2025-12-02Direct50,400 Reported balance Holding disclosure · report date 2017-02-27 · row 11 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 11 · Balance 50,400

Option to Buy Common StockSEC Table II · derivative / convertible security · Conversion / exercise price $40.75 · Expires 2024-12-03Direct46,400 Reported balance Holding disclosure · report date 2017-02-27 · row 12 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 12 · Balance 46,400

Option to Buy Common StockSEC Table II · derivative / convertible security · Conversion / exercise price $50.62 · Expires 2023-12-04Direct35,400 Reported balance Holding disclosure · report date 2017-02-27 · row 13 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 13 · Balance 35,400

Option to Buy Common StockSEC Table II · derivative / convertible security · Conversion / exercise price $39.19 · Expires 2020-12-01Direct28,100 Reported balance Holding disclosure · report date 2017-02-27 · row 14 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 14 · Balance 28,100

Option to Buy Common StockSEC Table II · derivative / convertible security · Conversion / exercise price $35.67 · Expires 2018-02-13Direct11,500 Reported balance Holding disclosure · report date 2017-02-27 · row 15 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 15 · Balance 11,500

Filing footnotes · ownership attribution and instrument terms

F1: The sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on February 10, 2017.

F2: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $52.62 to $53.53, inclusive. The Reporting Person undertakes to provide to Halliburton Company, any security holder of Halliburton Company, or the staff of the Securities and Exchange Commission, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (2) to this Form 4.

F3: Options disposed of through exercise pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on February 10, 2017.

ONEOK INC /NEW/

Report date May 20, 2026 · Filed May 22, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common Stock, par value $0.01SEC Table I · non-derivativeDirect2,572 Reported balance After 2026-05-20 transaction · row 1
1 source row

Row 1 · 2026-05-20 · Grant · Acquired 1,845 · Balance 2,572

F1: Annual cash and/or stock retainer shares issued under the Issuer's 2025 Equity Incentive Plan.

Filing footnotes · ownership attribution and instrument terms

F1: Annual cash and/or stock retainer shares issued under the Issuer's 2025 Equity Incentive Plan.

SEADRILL Ltd

Report date June 03, 2026 · Filed June 05, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Restricted Stock UnitsSEC Table II · derivative / convertible securityDirect2,618 Reported balance After 2026-06-03 transaction · row 1 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 1 · 2026-06-03 · Grant · Acquired 2,618 · Balance 2,618

F1: Represents restricted stock units granted to the reporting person on June 3, 2026. Each restricted stock unit represents a contingent right to receive one common share, par value $0.01 per share (a "Common Share"), of Seadrill Limited (the "Company").

F2: The restricted stock units vest either (i) on the date of the 2027 Annual General Meeting of Shareholders of the Company (the "2027 Meeting"), if the 2027 Meeting occurs at least 50 weeks from the grant date or (ii) if earlier or the 2027 Meeting occurs less than 50 weeks from the grant date, on the first anniversary of the grant date, and will be settled in cash or Common Shares at the election of the Joint Nomination and Remuneration Committee of the Board of Directors of the Company.

Filing footnotes · ownership attribution and instrument terms

F1: Represents restricted stock units granted to the reporting person on June 3, 2026. Each restricted stock unit represents a contingent right to receive one common share, par value $0.01 per share (a "Common Share"), of Seadrill Limited (the "Company").

F2: The restricted stock units vest either (i) on the date of the 2027 Annual General Meeting of Shareholders of the Company (the "2027 Meeting"), if the 2027 Meeting occurs at least 50 weeks from the grant date or (ii) if earlier or the 2027 Meeting occurs less than 50 weeks from the grant date, on the first anniversary of the grant date, and will be settled in cash or Common Shares at the election of the Joint Nomination and Remuneration Committee of the Board of Directors of the Company.

WESTLAKE CORP

Report date August 14, 2026 · Filed August 17, 2026

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Restricted Stock UnitsSEC Table II · derivative / convertible securityDirect2,184 Reported balance After 2026-08-14 transaction · row 1 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 1 · 2026-08-14 · Grant · Acquired 2,184 · Balance 2,184

F1: Restricted stock units convert into the Issuer's common stock on a one-for-one basis.

F2: All of the restricted stock units will vest on August 14, 2027.

Filing footnotes · ownership attribution and instrument terms

F1: Restricted stock units convert into the Issuer's common stock on a one-for-one basis.

F2: All of the restricted stock units will vest on August 14, 2027.

Weatherford International plc

Report date December 13, 2019 · Filed December 17, 2019

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Ordinary SharesSEC Table I · non-derivativeDirect1,741 Ending reported balance After 2019-12-13 transaction · row 5
5 source rows · reconciled sequence

Row 1 · 2019-12-13 · Tax withholding · Disposed 401,718 · Balance 1,263,897

F1: On July 1, 2019, Weatherford International plc (the "Issuer"), Weatherford International Ltd., and Weatherford International, LLC (collectively, the "Company") commenced voluntary cases under Chapter 11 of the United States Bankruptcy Code in the U.S. Bankruptcy Court for the Southern District of Texas (the "Bankruptcy Court") under the caption In re Weatherford International plc, et al. seeking relief under the provisions of Chapter 11 of Title 11 of the United States Code. On September 9, 2019, the Company filed with the Bankruptcy Court the proposed Second Amended Joint Prepackaged Plan of Reorganization of Weatherford International plc and its Affiliate Debtors, dated September 9, 2019 (the "Plan"). On September 11, 2019, the Bankruptcy Court entered an order, Docket No. 343, confirming and approving the Plan. On December 13, 2019 (the "Effective Date"), the Plan became effective pursuant to its terms and the Company emerged from bankruptcy.

F2: Pursuant to the terms of the respective award agreements, immediately prior to the Effective Date, all outstanding restricted stock units vested.

F3: Transaction was a withholding of a portion of vested restricted share units to satisfy the reporting person's tax withholding obligations upon vesting, pursuant to the award agreements and associated equity incentive plan under which the awards were granted.

Row 2 · 2019-12-13 · Grant · Acquired 2,057,174 · Balance 3,321,071

F1: On July 1, 2019, Weatherford International plc (the "Issuer"), Weatherford International Ltd., and Weatherford International, LLC (collectively, the "Company") commenced voluntary cases under Chapter 11 of the United States Bankruptcy Code in the U.S. Bankruptcy Court for the Southern District of Texas (the "Bankruptcy Court") under the caption In re Weatherford International plc, et al. seeking relief under the provisions of Chapter 11 of Title 11 of the United States Code. On September 9, 2019, the Company filed with the Bankruptcy Court the proposed Second Amended Joint Prepackaged Plan of Reorganization of Weatherford International plc and its Affiliate Debtors, dated September 9, 2019 (the "Plan"). On September 11, 2019, the Bankruptcy Court entered an order, Docket No. 343, confirming and approving the Plan. On December 13, 2019 (the "Effective Date"), the Plan became effective pursuant to its terms and the Company emerged from bankruptcy.

F4: Pursuant to the terms of the respective award agreements, immediately prior to the Effective Time, all outstanding performance share units previously granted vested at a multiple of two times the number of units granted. Includes awards granted on April 24, 2017 and January 31, 2018.

Row 3 · 2019-12-13 · Tax withholding · Disposed 809,498 · Balance 2,511,573

F1: On July 1, 2019, Weatherford International plc (the "Issuer"), Weatherford International Ltd., and Weatherford International, LLC (collectively, the "Company") commenced voluntary cases under Chapter 11 of the United States Bankruptcy Code in the U.S. Bankruptcy Court for the Southern District of Texas (the "Bankruptcy Court") under the caption In re Weatherford International plc, et al. seeking relief under the provisions of Chapter 11 of Title 11 of the United States Code. On September 9, 2019, the Company filed with the Bankruptcy Court the proposed Second Amended Joint Prepackaged Plan of Reorganization of Weatherford International plc and its Affiliate Debtors, dated September 9, 2019 (the "Plan"). On September 11, 2019, the Bankruptcy Court entered an order, Docket No. 343, confirming and approving the Plan. On December 13, 2019 (the "Effective Date"), the Plan became effective pursuant to its terms and the Company emerged from bankruptcy.

F4: Pursuant to the terms of the respective award agreements, immediately prior to the Effective Time, all outstanding performance share units previously granted vested at a multiple of two times the number of units granted. Includes awards granted on April 24, 2017 and January 31, 2018.

F5: Transaction was a withholding of a portion of vested performance share units to satisfy the reporting person's tax withholding obligations upon vesting, pursuant to the award agreements and associated equity incentive plan under which the awards were granted.

Row 4 · 2019-12-13 · Disposition to issuer · Disposed 2,511,573 · Balance 0

F1: On July 1, 2019, Weatherford International plc (the "Issuer"), Weatherford International Ltd., and Weatherford International, LLC (collectively, the "Company") commenced voluntary cases under Chapter 11 of the United States Bankruptcy Code in the U.S. Bankruptcy Court for the Southern District of Texas (the "Bankruptcy Court") under the caption In re Weatherford International plc, et al. seeking relief under the provisions of Chapter 11 of Title 11 of the United States Code. On September 9, 2019, the Company filed with the Bankruptcy Court the proposed Second Amended Joint Prepackaged Plan of Reorganization of Weatherford International plc and its Affiliate Debtors, dated September 9, 2019 (the "Plan"). On September 11, 2019, the Bankruptcy Court entered an order, Docket No. 343, confirming and approving the Plan. On December 13, 2019 (the "Effective Date"), the Plan became effective pursuant to its terms and the Company emerged from bankruptcy.

F6: On the Effective Date, all of the Issuer's outstanding ordinary shares were cancelled and extinguished pursuant to the Plan.

Row 5 · 2019-12-13 · Grant · Acquired 1,741 · Balance 1,741

F1: On July 1, 2019, Weatherford International plc (the "Issuer"), Weatherford International Ltd., and Weatherford International, LLC (collectively, the "Company") commenced voluntary cases under Chapter 11 of the United States Bankruptcy Code in the U.S. Bankruptcy Court for the Southern District of Texas (the "Bankruptcy Court") under the caption In re Weatherford International plc, et al. seeking relief under the provisions of Chapter 11 of Title 11 of the United States Code. On September 9, 2019, the Company filed with the Bankruptcy Court the proposed Second Amended Joint Prepackaged Plan of Reorganization of Weatherford International plc and its Affiliate Debtors, dated September 9, 2019 (the "Plan"). On September 11, 2019, the Bankruptcy Court entered an order, Docket No. 343, confirming and approving the Plan. On December 13, 2019 (the "Effective Date"), the Plan became effective pursuant to its terms and the Company emerged from bankruptcy.

F7: New shares of the Issuer's ordinary shares, par value $.001 per share (the "New Ordinary Shares") were issued to the Reporting Person on the Effective Date pursuant to the Plan. The receipt of the New Ordinary Shares by the Reporting Person was involuntary, without additional consideration and in accordance with the Plan approved by the Bankruptcy Court.

Warrants (right to buy)SEC Table II · derivative / convertible security · Conversion / exercise price $99.96 · Expires 2023-12-13Direct19,350 Reported balance After 2019-12-13 transaction · row 6 Instrument identity requires review; Table II rows are not merged.
1 source row

Row 6 · 2019-12-13 · Grant · Acquired 19,350 · Balance 19,350

F1: On July 1, 2019, Weatherford International plc (the "Issuer"), Weatherford International Ltd., and Weatherford International, LLC (collectively, the "Company") commenced voluntary cases under Chapter 11 of the United States Bankruptcy Code in the U.S. Bankruptcy Court for the Southern District of Texas (the "Bankruptcy Court") under the caption In re Weatherford International plc, et al. seeking relief under the provisions of Chapter 11 of Title 11 of the United States Code. On September 9, 2019, the Company filed with the Bankruptcy Court the proposed Second Amended Joint Prepackaged Plan of Reorganization of Weatherford International plc and its Affiliate Debtors, dated September 9, 2019 (the "Plan"). On September 11, 2019, the Bankruptcy Court entered an order, Docket No. 343, confirming and approving the Plan. On December 13, 2019 (the "Effective Date"), the Plan became effective pursuant to its terms and the Company emerged from bankruptcy.

F8: Warrants to purchase New Ordinary Shares (the "Warrants") were issued to the Reporting Person on the Effective Date pursuant to the Plan. The Warrants may be exercised at any time prior to their expiration. The receipt of the Warrants by the Reporting Person was involuntary, without additional consideration and in accordance with the Plan approved by the Bankruptcy Court.

Filing footnotes · ownership attribution and instrument terms

F1: On July 1, 2019, Weatherford International plc (the "Issuer"), Weatherford International Ltd., and Weatherford International, LLC (collectively, the "Company") commenced voluntary cases under Chapter 11 of the United States Bankruptcy Code in the U.S. Bankruptcy Court for the Southern District of Texas (the "Bankruptcy Court") under the caption In re Weatherford International plc, et al. seeking relief under the provisions of Chapter 11 of Title 11 of the United States Code. On September 9, 2019, the Company filed with the Bankruptcy Court the proposed Second Amended Joint Prepackaged Plan of Reorganization of Weatherford International plc and its Affiliate Debtors, dated September 9, 2019 (the "Plan"). On September 11, 2019, the Bankruptcy Court entered an order, Docket No. 343, confirming and approving the Plan. On December 13, 2019 (the "Effective Date"), the Plan became effective pursuant to its terms and the Company emerged from bankruptcy.

F2: Pursuant to the terms of the respective award agreements, immediately prior to the Effective Date, all outstanding restricted stock units vested.

F3: Transaction was a withholding of a portion of vested restricted share units to satisfy the reporting person's tax withholding obligations upon vesting, pursuant to the award agreements and associated equity incentive plan under which the awards were granted.

F4: Pursuant to the terms of the respective award agreements, immediately prior to the Effective Time, all outstanding performance share units previously granted vested at a multiple of two times the number of units granted. Includes awards granted on April 24, 2017 and January 31, 2018.

F5: Transaction was a withholding of a portion of vested performance share units to satisfy the reporting person's tax withholding obligations upon vesting, pursuant to the award agreements and associated equity incentive plan under which the awards were granted.

F6: On the Effective Date, all of the Issuer's outstanding ordinary shares were cancelled and extinguished pursuant to the Plan.

F7: New shares of the Issuer's ordinary shares, par value $.001 per share (the "New Ordinary Shares") were issued to the Reporting Person on the Effective Date pursuant to the Plan. The receipt of the New Ordinary Shares by the Reporting Person was involuntary, without additional consideration and in accordance with the Plan approved by the Bankruptcy Court.

F8: Warrants to purchase New Ordinary Shares (the "Warrants") were issued to the Reporting Person on the Effective Date pursuant to the Plan. The Warrants may be exercised at any time prior to their expiration. The receipt of the Warrants by the Reporting Person was involuntary, without additional consideration and in accordance with the Plan approved by the Bankruptcy Court.

Past disclosures · reporting ended (1)

No longer tracked through insider filings. These historical balances do not imply present ownership or a zero position.

MARATHON OIL CORP

Report date November 22, 2024 · Filed November 22, 2024

Section 16 reporting ended · disclosed 2024-11-22. Current position is not established by this disclosure.

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeDirect0 Reported balance After 2024-11-22 transaction · row 1 Sequence does not reconcile; account continuity is unresolved.
1 source row

Row 1 · 2024-11-22 · Disposition to issuer · Disposed 8,169 · Balance 0

F1: This Form 4 reports securities disposed of in connection with the Agreement and Plan of Merger (the "Merger Agreement"), dated May 28, 2024, by and among Marathon Oil Corporation, a Delaware corporation ("Marathon"), ConocoPhillips, a Delaware corporation ("ConocoPhillips"), and Puma Merger Sub Corp., a Delaware corporation and a wholly owned subsidiary of ConocoPhillips ("Merger Sub "), under which, and upon the terms and subject to the conditions set forth therein, Merger Sub merged with and into Marathon (the "Merger").

F2: Pursuant to the Merger Agreement, at the effective time of the Merger each share of common stock, par value $1.00 per share, of Marathon ("Marathon common stock") and each outstanding restricted stock unit award beneficially owned by the Reporting Person were cancelled and converted into the right to receive 0.2550 shares of common stock, par value $0.01 per share, of ConocoPhillips ("ConocoPhillips common stock") and cash in lieu of any fractional ConocoPhillips common stock.

Common StockSEC Table I · non-derivativeDirect0 Reported balance After 2024-11-22 transaction · row 2 Sequence does not reconcile; account continuity is unresolved.
1 source row

Row 2 · 2024-11-22 · Disposition to issuer · Disposed 8,130 · Balance 0

F2: Pursuant to the Merger Agreement, at the effective time of the Merger each share of common stock, par value $1.00 per share, of Marathon ("Marathon common stock") and each outstanding restricted stock unit award beneficially owned by the Reporting Person were cancelled and converted into the right to receive 0.2550 shares of common stock, par value $0.01 per share, of ConocoPhillips ("ConocoPhillips common stock") and cash in lieu of any fractional ConocoPhillips common stock.

F3: Non-Retainer Annual Director Stock Unit Award granted under Marathon Oil Corporation 2019 Incentive Compensation Plan.

Filing footnotes · ownership attribution and instrument terms

F1: This Form 4 reports securities disposed of in connection with the Agreement and Plan of Merger (the "Merger Agreement"), dated May 28, 2024, by and among Marathon Oil Corporation, a Delaware corporation ("Marathon"), ConocoPhillips, a Delaware corporation ("ConocoPhillips"), and Puma Merger Sub Corp., a Delaware corporation and a wholly owned subsidiary of ConocoPhillips ("Merger Sub "), under which, and upon the terms and subject to the conditions set forth therein, Merger Sub merged with and into Marathon (the "Merger").

F2: Pursuant to the Merger Agreement, at the effective time of the Merger each share of common stock, par value $1.00 per share, of Marathon ("Marathon common stock") and each outstanding restricted stock unit award beneficially owned by the Reporting Person were cancelled and converted into the right to receive 0.2550 shares of common stock, par value $0.01 per share, of ConocoPhillips ("ConocoPhillips common stock") and cash in lieu of any fractional ConocoPhillips common stock.

F3: Non-Retainer Annual Director Stock Unit Award granted under Marathon Oil Corporation 2019 Incentive Compensation Plan.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
May 18, 2018 Filed May 21, 2018 13:57 UTC WESTLAKE CORP WLK · Entity 3555 GrantRestricted Stock Units · Derivative 987 $0.00 $0.00
Disclosure

SEC source: 0001140361-18-024830 · doc1.xml · derivative · entry 1

MCCOLLUM MARK A · CIK 0001215888 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 987

Underlying: Common Stock · 987 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock.

F2 · derivative.exercise_date: All of the restricted stock units will vest on May 18, 2019.

F2 · derivative.expiration_date: All of the restricted stock units will vest on May 18, 2019.

Read SEC document
April 26, 2018 Filed Apr 27, 2018 14:44 UTC Archrock, Inc. AROC · Entity 3837 GrantCommon Stock 2,800 Not disclosed Not disclosed
Disclosure

SEC source: 0001389050-18-000022 · wf-form4_152484021340413.xml · nonDerivative · entry 1

MCCOLLUM MARK A · CIK 0001215888 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 82,751

F1 · price: Received in exchange for 2,000 common units of Archrock Partners, L.P. ("APLP") in connection with the merger of APLP with and into a wholly owned subsidiary of the Issuer (the "Merger") on April 26, 2018 (the "Effective Date"). On the Effective Date, each APLP common unit was converted into 1.4 shares of common stock of the Issuer.

Read SEC document
April 24, 2018 Filed Apr 26, 2018 20:11 UTC Weatherford International plc WFT · Entity 3720 Tax withholdingOrdinary Shares 77,903 $2.59 $201,768.77
Disclosure

SEC source: 0001603923-18-000062 · wf-form4_152477344636664.xml · nonDerivative · entry 1

MCCOLLUM MARK A · CIK 0001215888 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,864,760

F1 · kind: Transaction was a withholding of a portion of vested restricted share units to satisfy the reporting person's tax withholding obligations upon vesting.

Read SEC document
March 02, 2018 Filed Mar 5, 2018 23:18 UTC Archrock, Inc. AROC · Entity 3837 GrantCommon Stock 13,158 $0.00 $0.00
Disclosure

SEC source: 0001389050-18-000014 · wf-form4_152029188493627.xml · nonDerivative · entry 1

MCCOLLUM MARK A · CIK 0001215888 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 79,951

F1 · kind: This award represents a grant of restricted stock under the Archrock, Inc. 2013 Stock Incentive Plan subject to twenty-five (25%) vesting on each of March 2, 2018, June 1, 2018, September 1, 2018 and December 1, 2018. The award is subject to forfeiture or accelerated vesting pursuant to certain events as set out in the Award Notice and Agreement.

Read SEC document
January 31, 2018 Filed Feb 2, 2018 21:43 UTC Weatherford International plc WFT · Entity 3720 GrantOrdinary Shares 845,771 $0.00 $0.00
Disclosure

SEC source: 0001603923-18-000028 · wf-form4_151760780542024.xml · nonDerivative · entry 1

MCCOLLUM MARK A · CIK 0001215888 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,942,663

F1 · price: Transaction was a grant of restricted share units and therefore has no price. The units are scheduled to vest in equal increments on each of January 31, 2019, 2020 and 2021.

Read SEC document
April 24, 2017 Filed Apr 25, 2017 20:31 UTC Weatherford International plc WFT · Entity 3720 GrantPerformance Share Units · Derivative 548,446 $0.00 $0.00
Disclosure

SEC source: 0001603923-17-000068 · wf-form4_149315225888554.xml · derivative · entry 2

MCCOLLUM MARK A · CIK 0001215888 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 548,446

Underlying: Ordinary Shares · Not disclosed shares

Expires not disclosed

F2 · derivative.exercise_price: Performance share units are scheduled to vest in equal increments on each of April 24, 2018, 2019 and 2020. Each performance share unit represents a contingent right to receive 0 to 2 shares, based on the achievement of specified increases in share price at the end of each of the 2017-2019 performance periods.

F2 · derivative.exercise_date: Performance share units are scheduled to vest in equal increments on each of April 24, 2018, 2019 and 2020. Each performance share unit represents a contingent right to receive 0 to 2 shares, based on the achievement of specified increases in share price at the end of each of the 2017-2019 performance periods.

F2 · derivative.expiration_date: Performance share units are scheduled to vest in equal increments on each of April 24, 2018, 2019 and 2020. Each performance share unit represents a contingent right to receive 0 to 2 shares, based on the achievement of specified increases in share price at the end of each of the 2017-2019 performance periods.

F2 · derivative.underlying_shares: Performance share units are scheduled to vest in equal increments on each of April 24, 2018, 2019 and 2020. Each performance share unit represents a contingent right to receive 0 to 2 shares, based on the achievement of specified increases in share price at the end of each of the 2017-2019 performance periods.

Read SEC document
April 24, 2017 Filed Apr 25, 2017 20:31 UTC Weatherford International plc WFT · Entity 3720 GrantOrdinary Shares 1,096,892 $0.00 $0.00
Disclosure

SEC source: 0001603923-17-000068 · wf-form4_149315225888554.xml · nonDerivative · entry 1

MCCOLLUM MARK A · CIK 0001215888 · Director · President and CEO

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,096,892

F1 · price: Transaction was a grant of restricted share units and therefore has no price. The award is comprised of two separate grants of 548,446 restricted share units each. The units in the first grant are scheduled to vest in equal increments on each of April 24, 2018, 2019 and 2020. The units in the second grant vest as follows: 25 percent vest on each of April 24, 2018 and 2019 and the remaining 50 percent vest on April 24, 2020.

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March 03, 2017 Filed Mar 6, 2017 16:07 UTC Archrock, Inc. AROC · Entity 3837 GrantCommon Stock 9,125 $0.00 $0.00
Disclosure

SEC source: 0001389050-17-000037 · wf-form4_148881646310266.xml · nonDerivative · entry 1

MCCOLLUM MARK A · CIK 0001215888 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 66,793

F1 · kind: This award represents a grant of restricted stock under the Archrock, Inc. 2013 Stock Incentive Plan subject to twenty-five (25%) vesting on each of March 3, 2017 (the date of grant), June 1, 2017, September 1, 2017, and December 1, 2017. The award is subject to forfeiture or accelerated vesting pursuant to certain events as set out in the Award Notice and Agreement.

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February 27, 2017 Filed Mar 1, 2017 20:08 UTC HALLIBURTON CO HAL · Entity 3141 Exercise / conversionOption to Buy Common Stock · Derivative 44,100 $0.00 Strike: $33.50 $0.00
Disclosure

SEC source: 0000045012-17-000059 · edgar.xml · derivative · entry 9

MCCOLLUM MARK A · CIK 0001215888 · EVP - Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 44,100 shares

Expires 2022-12-05

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · shares: Options disposed of through exercise pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on February 10, 2017.

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February 27, 2017 Filed Mar 1, 2017 20:08 UTC HALLIBURTON CO HAL · Entity 3141 Exercise / conversionOption to Buy Common Stock · Derivative 33,200 $0.00 Strike: $35.57 $0.00
Disclosure

SEC source: 0000045012-17-000059 · edgar.xml · derivative · entry 8

MCCOLLUM MARK A · CIK 0001215888 · EVP - Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 33,200 shares

Expires 2021-12-06

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · shares: Options disposed of through exercise pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on February 10, 2017.

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February 27, 2017 Filed Mar 1, 2017 20:08 UTC HALLIBURTON CO HAL · Entity 3141 Exercise / conversionOption to Buy Common Stock · Derivative 12,000 $0.00 Strike: $36.90 $0.00
Disclosure

SEC source: 0000045012-17-000059 · edgar.xml · derivative · entry 7

MCCOLLUM MARK A · CIK 0001215888 · EVP - Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 12,000 shares

Expires 2017-12-05

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F3 · shares: Options disposed of through exercise pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on February 10, 2017.

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February 27, 2017 Filed Mar 1, 2017 20:08 UTC HALLIBURTON CO HAL · Entity 3141 SaleCommon Stock 44,100 $53.30 $2,350,706.40
Disclosure

SEC source: 0000045012-17-000059 · edgar.xml · nonDerivative · entry 6

MCCOLLUM MARK A · CIK 0001215888 · EVP - Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 204,993

F1 · shares: The sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on February 10, 2017.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $52.62 to $53.53, inclusive. The Reporting Person undertakes to provide to Halliburton Company, any security holder of Halliburton Company, or the staff of the Securities and Exchange Commission, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (2) to this Form 4.

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February 27, 2017 Filed Mar 1, 2017 20:08 UTC HALLIBURTON CO HAL · Entity 3141 Exercise / conversionCommon Stock 44,100 $33.50 $1,477,350.00
Disclosure

SEC source: 0000045012-17-000059 · edgar.xml · nonDerivative · entry 5

MCCOLLUM MARK A · CIK 0001215888 · EVP - Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 249,093

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

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February 27, 2017 Filed Mar 1, 2017 20:08 UTC HALLIBURTON CO HAL · Entity 3141 SaleCommon Stock 33,200 $53.30 $1,769,692.80
Disclosure

SEC source: 0000045012-17-000059 · edgar.xml · nonDerivative · entry 4

MCCOLLUM MARK A · CIK 0001215888 · EVP - Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 204,993

F1 · shares: The sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on February 10, 2017.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $52.62 to $53.53, inclusive. The Reporting Person undertakes to provide to Halliburton Company, any security holder of Halliburton Company, or the staff of the Securities and Exchange Commission, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (2) to this Form 4.

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February 27, 2017 Filed Mar 1, 2017 20:08 UTC HALLIBURTON CO HAL · Entity 3141 Exercise / conversionCommon Stock 33,200 $35.57 $1,180,924.00
Disclosure

SEC source: 0000045012-17-000059 · edgar.xml · nonDerivative · entry 3

MCCOLLUM MARK A · CIK 0001215888 · EVP - Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 238,193

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
February 27, 2017 Filed Mar 1, 2017 20:08 UTC HALLIBURTON CO HAL · Entity 3141 SaleCommon Stock 12,000 $53.30 $639,648.00
Disclosure

SEC source: 0000045012-17-000059 · edgar.xml · nonDerivative · entry 2

MCCOLLUM MARK A · CIK 0001215888 · EVP - Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 204,993

F1 · shares: The sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on February 10, 2017.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $52.62 to $53.53, inclusive. The Reporting Person undertakes to provide to Halliburton Company, any security holder of Halliburton Company, or the staff of the Securities and Exchange Commission, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (2) to this Form 4.

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February 27, 2017 Filed Mar 1, 2017 20:08 UTC HALLIBURTON CO HAL · Entity 3141 Exercise / conversionCommon Stock 12,000 $36.90 $442,800.00
Disclosure

SEC source: 0000045012-17-000059 · edgar.xml · nonDerivative · entry 1

MCCOLLUM MARK A · CIK 0001215888 · EVP - Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 216,993

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
December 08, 2016 Filed Dec 9, 2016 20:26 UTC HALLIBURTON CO HAL · Entity 3141 Tax withholdingCommon Stock 2,711 $54.02 $146,448.22
Disclosure

SEC source: 0000045012-16-000440 · edgar.xml · nonDerivative · entry 2

MCCOLLUM MARK A · CIK 0001215888 · EVP - Chief Intergration Ofc

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 204,993

F3 · shares: Shares transferred to Halliburton Company for payment for Federal tax withholding obligations on lapse of restrictions on shares issued under the Stock and Incentive Plan. Said Plan permits Reporting Person to satisfy withholding tax obligation by transferring unrestricted shares to the Issuer.

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December 07, 2016 Filed Dec 8, 2016 21:02 UTC HALLIBURTON CO HAL · Entity 3141 Tax withholdingCommon Stock 2,677 $53.90 $144,290.30
Disclosure

SEC source: 0000045012-16-000419 · edgar.xml · nonDerivative · entry 2

MCCOLLUM MARK A · CIK 0001215888 · EVP - Chief Intergration Ofc

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 189,304

F1 · shares: Shares transferred to Halliburton Company for payment for Federal tax withholding obligations on lapse of restrictions on shares issued under the Stock and Incentive Plan. Said Plan permits Reporting Person to satisfy withholding tax obligation by transferring unrestricted shares to the Issuer.

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December 07, 2016 Filed Dec 9, 2016 20:26 UTC HALLIBURTON CO HAL · Entity 3141 GrantOption to Buy Common Stock · Derivative 30,500 $0.00 Strike: $53.54 $0.00
Disclosure

SEC source: 0000045012-16-000440 · edgar.xml · derivative · entry 3

MCCOLLUM MARK A · CIK 0001215888 · EVP - Chief Intergration Ofc

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,500

Underlying: Common Stock · 30,500 shares

Expires 2026-12-07

F4 · derivative.exercise_date: The options awarded become exercisable on each of the first, second and third anniversaries of the grant in cumulative increments of one-third each of the number of shares subject to the grant.

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December 07, 2016 Filed Dec 9, 2016 20:26 UTC HALLIBURTON CO HAL · Entity 3141 GrantCommon Stock 18,400 $53.54 $985,136.00
Disclosure

SEC source: 0000045012-16-000440 · edgar.xml · nonDerivative · entry 1

MCCOLLUM MARK A · CIK 0001215888 · EVP - Chief Intergration Ofc

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 207,704

F1 · shares: Shares awarded pursuant to the Halliburton Company Stock and Incentive Plan. Said Plan provides for the surrender of common stock to the Issuer to satisfy withholding tax obligations.

F2 · price: On December 7, 2016, the closing price of Halliburton Company's Common Stock on the New York Stock Exchange was $53.54.

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December 06, 2016 Filed Dec 8, 2016 21:02 UTC HALLIBURTON CO HAL · Entity 3141 Tax withholdingCommon Stock 6,512 $54.17 $352,755.04
Disclosure

SEC source: 0000045012-16-000419 · edgar.xml · nonDerivative · entry 1

MCCOLLUM MARK A · CIK 0001215888 · EVP - Chief Intergration Ofc

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 191,981

F1 · shares: Shares transferred to Halliburton Company for payment for Federal tax withholding obligations on lapse of restrictions on shares issued under the Stock and Incentive Plan. Said Plan permits Reporting Person to satisfy withholding tax obligation by transferring unrestricted shares to the Issuer.

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Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.