| Soon drilling derricks, pipelines and roads carved up the region, and oil spills polluted lakes and rivers. |
| Oil wells no longer require derricks, so west county's 7,000 rickety towers are largely gone. |
| Timbers for the largest derricks could not be provided locally, so they were shipped from the West and the South. |
| The ship is self-sufficient in that it has its own derricks enabling to load and unload all over the world. |
| A few nameless shrubs, oil derricks and transmission towers line the far edges of the highway. |
| There were oil derricks and natural gas pipelines, grain elevators six stories high. |
