Some lubes don't include any water at all. Lubricants based on vegetable oils and petroleum products are often very slick and long lasting. Vegetable oils common in lubes include olive, sesame, and palm oils, to name just a few of the many possible varieties. Most petroleum-based lubes are varying grades of petroleum jelly, with Vaseline being the best known brand.
Both plant oils and petroleum lubricants are made of hydrocarbon chains, long strings of carbon atoms with hydrogen atoms attached to the sides. The texture of petroleum-based lubes is determined primarily by the lengths of the carbon chains.
Molecules made of chains ten to fifteen carbon atoms long form mineral oils and light watery lubricants. Longer chains are heavier and clump together to form jellies like Vaseline. Still longer chains result in paraffin wax.
Vegetable oils are a little more complicated. They're also made of hydrocarbon chains. However, they typically consist of multiple chains linked together by a glycerin molecule. Like petroleum products, heavier oils usually are made of longer chains. In addition, light, watery oils can be made to solidify by changing the number of hydrogen atoms attached to the chains, through a process known as hydrogenation. Margarine and shortening are made from light vegetable oils that have been hydrogenated.
Hydrocarbon chains that make up oils are highly hydrophobic. If you've ever made salad dressing with oil and vinegar (which is mostly water) you've seen how hard it is to mix the two.
The molecules in oils and petroleum products don't attract each other or your skin very strongly, which is why they're slippery.
You might think oils and petroleum jellies would be easier to clean off of your body if they're not as strongly attracted to your skin as is water, but that's clearly not the case. One reason it's harder to remove hydrocarbon lubes is that their large molecules don't evaporate very well. If you get water on your skin, just wait a while and it'll dry all by itself. Oils and petroleum products will stick around for ages with little or no sign of evaporation, which is good for long lovemaking sessions, but not so great for the post-coital clean up.
The fact that the lubes are hydrophobic also means that you cannot simply rinse them off with water. To remove the lubes you'll need to wash with soap.
Many men prefer oils and petroleum products over water-based lubes for masturbation. Some people feel that they are better suited for anal sex because the petroleum jellies in particular are heavier and last longer. Hydrophobic vegetable oils and petroleum lubes work well in the tub or pool because they won't rinse away.
Unfortunately, all oils and petroleum products dissolve latex, and should never be used in combination with latex condoms, diaphragms, and latex sex toys. It's also generally a bad idea to use them for vaginal sex because the soap necessary to clean the lubes away removes the protective vaginal mucous as well. This leaves the delicate membranes open to infection.
A 2004 study of MSM in Nairobi reported that Vaseline® or petroleum jelly was used by 84% of respondents, baby oil or body lotion by 26% and water-based products by 41% . Other MSM studies in Africa have also reported high levels of petroleum jelly use and sometimes other “condiments,” such as butter/margarine, yoghurt, shea butter, and cooking oils.
Information on lubricant use for heterosexual vaginal intercourse in Africa is less available, though limited evidence suggests that oil-based lubricants may often be used in heterosexual encounters. Separate studies of FSW in Nairobi, Kenya, have documented petroleum jelly use by 20–40% of participants . Additionally, male sex workers in Mombasa reported using such lubricants as petroleum jelly, baby oil, lotions, vegetable oil, and coconut oil with both male and female sexual partners for both anal and vaginal sex (Population Council, unpublished data).
In 2011, the World Health Organization (WHO), in collaboration with United Nations Population Fund and Family Health International, published an advisory document which reconfirms that oil-based lubricants should be avoided, and provides more clarity on the procurement of safer water-based lubricants. A list of household products are listed as damaging to latex including: baby oil, burn ointment, dairy butter, palm or coconut oil, cooking oil, fish oil, mineral oil, suntan oil, haemorrhoid cream, petroleum jelly and body/hand lotions . This WHO list, however, references a behavioural study in Jamaica  which actually does not specifically mention, or scientifically test the condom compatibility of most of these “condiments,” as is implied.
In order words, condoms degrade faster when used with oil-based lubricants.