| Answer | Crossword Clue |
|---|---|
| OIL | 1927 Upton Sinclair novel |
| OIL | Novel by Upton Sinclair, 1927. |
| OIL | Upton Sinclair novel |
| OIL | Upton Sinclair novel that inspired "There Will Be Blood" |
| OIL | Upton Sinclair novel on which "There Will Be Blood" is based |
| OIL | Upton Sinclair novel that was the inspiration for "There Will Be Blood" |
