Here, at a glance, are the possible violations of House rules by House Speaker Jim Wright, D-Texas, which are to be investigated:

"Lobbying efforts on behalf of a constituent with whom he had an interest in a private gas well venture."

This allegation refers to Wright's actions in 1979 on behalf of Neptune Oil, owned in part by Richard Moncrief. The speaker wrote to Egyptian President Anwar Sadat on behalf of the company, whose assets were at issue during the Camp David accords. The speaker says his financial relationship with the Moncrief family was unrelated to Neptune and he had no personal financial stake in the outcome.

Texas Oil & Gas - "Circumstances surrounding intervention in a matter before the Department of the Interior on behalf of Texas Oil & Gas Co."

The speaker says published allegations that he owned stock in the company were incorrect, and he had no financial interest in the outcome of the federal decision on an Arkansas energy exploration.

Book royalties - "Whether campaign funds were used, directly or indirectly, to pay for publication of a book from which he received a 55 percent royalty."

The speaker earned about $55,000, based on the generous royalty arrangement on a book published by his friend, businessman William Carlos Moore. The company owned by Moore has done nearly $300,000 in work for Wright's campaign. The speaker denies the favorable book contract was a way of repaying him for that business or in any way a recycling of his campaign money for personal use.

Personal use of staff - "Whether government resources were improperly used to com plete work on a book from which he received royalties."

This refers to the same book, "Reflections of a Public Man." A member of Wright's staff helped compile the paperback collection of the speaker's remarks and writings, and Wright's office used $2,000 in public money to send the aide to Fort Worth to work on the project.

Fort Worth condominium - "The use of a condominium in Fort Worth, Texas."

Wright received full use of a poolside condo minium for his congressional district residence from the family of business partner George Mallick. The speaker paid no monthly rent, but he paid expenses and a per diem when he used it.

Wright says the owner has no interest in legislation, the per diem of $21.67 was at market rate, and the unit would have otherwise remained vacant. Wright said he recently bought the condominium for $58,500.

Texas Savings & Loans - "The possible exercise of undue influence in dealing with officials of the Federal Home Loan Bank Board."

The speaker allegedly sought special treatment from the chairman of the bank board for Texas savings and loan officials, including Democratic campaign contributors. Wright insists he was only asking for fair hearings for his constituents.