| Clue | Source | Date |
|---|---|---|
| S&P 100 company that's a descendant of Standard Oil | LA Times Daily | 26 Feb 2024 |
| S&P100 Company that's a descendant of Standard Oil | ||
| Gas giant | New York Times | 07 Oct 2023 |
| Dow giant | Newsday | 12 Jun 2020 |
| BP rival | New York Times | 26 Apr 2017 |
| BP rival | ||
| "Energy lives here" sloganeer | ||
| Union in 1999 news | ||
| Standard Oil descendant | ||
| Dow 30 company | ||
| Dow 30 company | ||
| Descendant of Standard Oil | ||
| Corporate giant based in Irving, Tex. | ||
| Product of a major 1999 merger | ||
| Product of a major 1999 merger | ||
| Result of a 1999 merger |