Embed a state cost card

A small card with the tested median cost to plug a well in one state, its typical range and confidence, and a link back to Plugging Index. Free to use; the card shows public figures only and updates when the data does.

Only the nine states with a tested statewide figure are offered (Colorado, Illinois, Indiana, Kentucky, Louisiana, Nebraska, New Mexico, North Dakota, Wyoming). The card links to the state page. The figures are benchmarks from publicly funded orphan-well plugging, not quotes; see the limitations. The card counts how many times it is shown (a number only; no cookie, address or page is recorded).