The public view is the crawlable proof. The same sourced dataset is available through REST and MCP for agents, research scripts, and back-office tools.
| Date | Insider | Role | Action | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Jun 11, 2026 | Brouillette Dan | Director | Grant(A) | 13K | — | $0 |
| Jun 11, 2026 | Patterson Mark R | Director | Grant(A) | 13K | — | $0 |
| Jun 11, 2026 | Boynton Charles D | Director | Grant(A) | 13K | — | $0 |
| Jun 11, 2026 | Blakely Robert Ian | Chief Financial Officer | Disposed to issuer(D) | 449K | — | — |
| Jun 11, 2026 | Blakely Robert Ian | Chief Financial Officer | Disposed to issuer(D) | 449K | $19.85 | $8.9M |
| Jun 11, 2026 | Amthor Corey | President | Disposed to issuer(D) | 617K | — | — |
| Jun 11, 2026 | Amthor Corey | President | Disposed to issuer(D) | 617K | $19.85 | $12.3M |
| Jun 11, 2026 | Satterthwaite Livingston | Director | Grant(A) | 13K | — | $0 |
| Jun 11, 2026 | Kobler Hans | Director, 10% Owner | Other(J) | 19.4M | — | — |
| Jun 11, 2026 | Kobler Hans | Director, 10% Owner | Other(J) | 6.0M | — | — |
| Jun 11, 2026 | Kobler Hans | Director, 10% Owner | Sell(S) | 6.0M | — | — |
| Jun 11, 2026 | Energy Impact Partners LLC | 10% Owner | Other(J) | 19.4M | — | — |
| Jun 11, 2026 | Energy Impact Partners LLC | 10% Owner | Other(J) | 6.0M | — | — |
| Jun 11, 2026 | Energy Impact Partners LLC | 10% Owner | Sell(S) | 6.0M | — | — |
| Oct 8, 2015 | Natural Gas Partners VII, L.P. | 10% Owner | Other(J) | 3.0M | — | — |
| Oct 8, 2015 | Natural Gas Partners VII, L.P. | 10% Owner | Other(J) | 50K | — | — |
| Oct 8, 2015 | Natural Gas Partners VII, L.P. | 10% Owner | Other(J) | 6.2M | — | — |
| Oct 8, 2015 | Natural Gas Partners VII, L.P. | 10% Owner | Other(J) | 31.4M | — | — |
| Oct 8, 2015 | Natural Gas Partners VII, L.P. | 10% Owner | Other(J) | 2.0M | — | — |
| Oct 8, 2015 | Natural Gas Partners VII, L.P. | 10% Owner | Other(J) | 55K | — | — |
| Oct 8, 2015 | Natural Gas Partners VII, L.P. | 10% Owner | Other(J) | 3.6M | — | — |
| Oct 8, 2015 | Natural Gas Partners VII, L.P. | 10% Owner | Other(J) | 7.0M | — | — |
| Oct 8, 2015 | Montierra Minerals & Production, L.P. | 10% Owner | Other(J) | 3.6M | — | — |
| Oct 8, 2015 | Montierra Minerals & Production, L.P. | 10% Owner | Other(J) | 7.0M | — | — |
| Oct 8, 2015 | Montierra Minerals & Production, L.P. | 10% Owner | Other(J) | 2.0M | — | — |
| Oct 8, 2015 | Montierra Minerals & Production, L.P. | 10% Owner | Other(J) | 55K | — | — |
| Oct 8, 2015 | Montierra Minerals & Production, L.P. | 10% Owner | Other(J) | 31.4M | — | — |
| Oct 8, 2015 | Montierra Minerals & Production, L.P. | 10% Owner | Other(J) | 3.0M | — | — |
| Oct 8, 2015 | Montierra Minerals & Production, L.P. | 10% Owner | Other(J) | 6.2M | — | — |
| Oct 8, 2015 | Montierra Minerals & Production, L.P. | 10% Owner | Other(J) | 50K | — | — |
| Oct 8, 2015 | Smith Philip B | Director | Disposed to issuer(D) | 116K | — | — |
| Oct 8, 2015 | Smith William A | Director | Disposed to issuer(D) | 107K | — | — |
| Oct 8, 2015 | Heeg Peggy A | Director | Disposed to issuer(D) | 87K | — | — |
| Oct 8, 2015 | Williamson Herbert C III | Director | Disposed to issuer(D) | 87K | — | — |
| Oct 8, 2015 | White William Kemper | Director | Disposed to issuer(D) | 113K | — | — |
| Oct 8, 2015 | Boettcher Charles C | SVP and General Counsel | Grant(A) | 677K | — | — |
| Oct 8, 2015 | Boettcher Charles C | SVP and General Counsel | Disposed to issuer(D) | 1.0M | — | — |
| Oct 8, 2015 | Boettcher Charles C | SVP and General Counsel | Tax withholding(F) | 53K | — | — |
| Oct 8, 2015 | Fox Roger A | Senior VP, Operations | Disposed to issuer(D) | 699K | — | — |
| Oct 8, 2015 | Fox Roger A | Senior VP, Operations | Grant(A) | 580K | — | — |
| Oct 8, 2015 | Fox Roger A | Senior VP, Operations | Tax withholding(F) | 45K | — | — |
| Oct 8, 2015 | Haines Robert M. | SVP, CFO and Treasurer | Grant(A) | 608K | — | — |
| Oct 8, 2015 | Haines Robert M. | SVP, CFO and Treasurer | Tax withholding(F) | 47K | — | — |
| Oct 8, 2015 | Haines Robert M. | SVP, CFO and Treasurer | Disposed to issuer(D) | 652K | — | — |
| Oct 8, 2015 | Mills Joseph A | Chairman and CEO, Director | Grant(A) | 1.6M | — | — |
| Oct 8, 2015 | Mills Joseph A | Chairman and CEO, Director | Disposed to issuer(D) | 2.4M | — | — |
| Oct 8, 2015 | Mills Joseph A | Chairman and CEO, Director | Tax withholding(F) | 123K | — | — |
| Oct 8, 2015 | Thuillier Lawrence J. | VP & Corporate Controller | Tax withholding(F) | 10K | — | — |
| Oct 8, 2015 | Thuillier Lawrence J. | VP & Corporate Controller | Disposed to issuer(D) | 251K | — | — |
| Oct 8, 2015 | Thuillier Lawrence J. | VP & Corporate Controller | Grant(A) | 184K | — | — |
| May 15, 2015 | Haines Robert M. | SVP & Chief Financial Officer | Tax withholding(F) | 10K | $2.44 | $25K |
| May 15, 2015 | Thuillier Lawrence J. | VP & Corporate Controller | Tax withholding(F) | 4K | $2.44 | $10K |
| May 15, 2015 | Fox Roger A | SVP, Operations | Tax withholding(F) | 22K | $2.44 | $53K |
| May 15, 2015 | Mills Joseph A | CEO and Chairman, Director | Tax withholding(F) | 51K | $2.44 | $123K |
| May 15, 2015 | Heeg Peggy A | Director | Grant(A) | 31K | — | $0 |
| May 15, 2015 | White William Kemper | Director | Grant(A) | 31K | — | $0 |
| May 15, 2015 | Williamson Herbert C III | Director | Grant(A) | 31K | — | $0 |
| May 15, 2015 | Smith Philip B | Director | Grant(A) | 31K | — | $0 |
| May 15, 2015 | Smith William A | Director | Grant(A) | 31K | — | $0 |
| Apr 24, 2015 | Thuillier Lawrence J. | VP & Corporate Controller | Grant(A) | 45K | — | $0 |
| Apr 24, 2015 | Fox Roger A | SVP, Operations | Grant(A) | 150K | — | $0 |
| Apr 24, 2015 | Boettcher Charles C | SVP and General Counsel | Grant(A) | 162K | — | $0 |
| Apr 24, 2015 | Haines Robert M. | SVP & Chief Financial Officer | Grant(A) | 150K | — | $0 |
| Apr 24, 2015 | Mills Joseph A | CEO and Chairman, Director | Grant(A) | 369K | — | $0 |
| Dec 15, 2014 | Haines Robert M. | SVP & Chief Financial Officer | Grant(A) | 17K | — | $0 |
| Dec 1, 2014 | Hallett Robert D | SVP, Business Development | Sell(S) | 7K | $2.81 | $20K |
| Nov 15, 2014 | Thuillier Lawrence J. | VP & Corporate Controller | Tax withholding(F) | 2K | $3.07 | $5K |
| Nov 15, 2014 | Hendrickson Steven G | Senior Vice President | Tax withholding(F) | 7K | $3.07 | $21K |
| Nov 15, 2014 | Haines Robert M. | VP & Chief Financial Officer | Tax withholding(F) | 2K | $3.07 | $5K |
| Nov 15, 2014 | Hallett Robert D | SVP, Business Development | Tax withholding(F) | 2K | $3.07 | $6K |
| Nov 15, 2014 | Mills Joseph A | CEO and Chairman, Director | Tax withholding(F) | 28K | $3.07 | $86K |
| Sep 16, 2014 | Fox Roger A | SVP, Operations | Grant(A) | 71K | — | $0 |
| Aug 27, 2014 | Mills Joseph A | CEO and Chairman, Director | Buy(P) | 6K | $4.09 | $25K |
| Aug 27, 2014 | Haines Robert M. | VP & Chief Financial Officer | Buy(P) | 5K | $4.10 | $21K |
| Aug 19, 2014 | Hallett Robert D | SVP, Business Development | Grant(A) | 6K | — | $0 |
| Aug 19, 2014 | Thuillier Lawrence J. | VP & Corporate Controller | Grant(A) | 2K | — | $0 |
| Aug 19, 2014 | Schimelpfening Joseph E | SVP, Upstream Business | Grant(A) | 7K | — | $0 |
| Aug 19, 2014 | Hendrickson Steven G | SVP, Technical Evaluations | Grant(A) | 7K | — | $0 |
| Aug 19, 2014 | Mills Joseph A | CEO and Chairman, Director | Grant(A) | 23K | — | $0 |
| Aug 19, 2014 | Boettcher Charles C | SVP and General Counsel | Grant(A) | 9K | — | $0 |
| Aug 15, 2014 | Hallett Robert D | SVP, Business Development | Sell(S) | 55K | $4.26 | $234K |
| May 30, 2014 | Williamson Herbert C III | Director | Grant(A) | 17K | — | $0 |
| May 30, 2014 | Smith Philip B | Director | Grant(A) | 17K | — | $0 |
| May 30, 2014 | Mills Joseph A | CEO and Chairman, Director | Grant(A) | 200K | — | $0 |
| May 30, 2014 | Boettcher Charles C | SVP and General Counsel | Grant(A) | 83K | — | $0 |
| May 30, 2014 | Schimelpfening Joseph E | SVP, Upstream Business | Grant(A) | 64K | — | $0 |
| May 30, 2014 | Haines Robert M. | VP & Chief Financial Officer | Grant(A) | 83K | — | $0 |
| May 30, 2014 | Hendrickson Steven G | SVP, Technical Evaluations | Grant(A) | 61K | — | $0 |
| May 30, 2014 | Hallett Robert D | SVP, Business Development | Grant(A) | 56K | — | $0 |
| May 30, 2014 | White William Kemper | Director | Grant(A) | 17K | — | $0 |
| May 30, 2014 | Heeg Peggy A | Director | Grant(A) | 17K | — | $0 |
| May 30, 2014 | Smith William A | Director | Grant(A) | 17K | — | $0 |
| May 15, 2014 | Langemeier Jeffrey D | VP & Controller, Corp & Mids | Tax withholding(F) | 3K | $4.17 | $12K |
| May 15, 2014 | Wood Jeffrey P. | SVP & Chief Financial Officer | Tax withholding(F) | 13K | $4.17 | $55K |
| May 15, 2014 | Hallett Robert D | SVP, Business Development | Tax withholding(F) | 11K | $4.17 | $46K |
| May 15, 2014 | Hendrickson Steven G | SVP, Technical Evaluations | Tax withholding(F) | 10K | $4.17 | $41K |
| May 15, 2014 | Schimelpfening Joseph E | SVP, Upstream Business | Tax withholding(F) | 10K | $4.17 | $43K |
| May 15, 2014 | Fox Roger A | SVP, Midstream Business | Tax withholding(F) | 14K | $4.17 | $60K |
| May 15, 2014 | Mills Joseph A | CEO and Chairman, Director | Tax withholding(F) | 32K | $4.17 | $134K |
| Mar 4, 2014 | Hallett Robert D | SVP, Business Development | Sell(S) | 6K | $4.85 | $29K |
Insider transactions sourced from SEC EDGAR Form 4 filings, normalized within minutes of acceptance. "Buy"/"Sell" mark open-market transactions (codes P/S), the tradeable signal. Awards, option exercises and tax-withholding are shown with their raw code. All data is public domain.
Coverage: Form 4 filings indexed 2006-01-02 → 2026-08-28. Earlier history is backfilling; this window widens as it deepens.
Programmatic access via the Arkolith API & MCP server (insider.transactions, insider.company).
Connected pages for EROC