¶1*596Brian W. McKay, Esq. (argued), James Wesley Hendrix, Asst. U.S. Atty., U.S. Attorney’s Office, for Plaintiff-Appellee.
¶2James Matthew Wright (argued), James Matthew Wright, Assistant Federal Public Defender, Lauren Anita Woods, Federal Public Defender’s Office, Amarillo, TX, for Defendant-Appellant.
¶3Before HIGGINBOTHAM, SOUTHWICK, and HIGGINSON, Circuit Judges.
¶5On November 5, 2012, Dallas law enforcement pulled over Michael Herrold as part of a routine traffic stop. During the encounter, the officers observed a handgun in plain view. Because he was a convicted felon, Herrold’s possession of the firearm was illegal under 18 U.S.C. § 922(g)(1), a charge to which he subsequently pled guilty without a plea agreement. Under the enhanced penalty provisions of the Armed Career Criminal Act (“ACCA”), 18 U.S.C. § 924(e), Herrold faced a statutory minimum of fifteen years imprisonment.
¶6Herrold’s previous felony offenses included: (1) possession of lysergic acid diethylamide (“LSD”) with intent to deliver, (2) burglary of a building, and (3) burglary of a habitation. In the court below, Her-rold argued that none of his prior convictions qualify as predicate offenses under the ACCA. The district judge disagreed, and sentenced Herrold to 211 months in prison. Without the enhancement, Her-rold would have faced a maximum penalty *597of ten years.1 He timely appealed his sentence.
¶7This Court reviews the application of an ACCA sentencing enhancement de novo.2 Because we hold that each of Herrold’s prior offenses qualify as predicate offenses under ACCA, we affirm.
¶8I.
¶9First, Herrold argues that his conviction for burglary of a building3 should not qualify as generic burglary, one of the enumerated predicate offenses in ACCA.4 But his argument is foreclosed by our holding in Conde-Castaneda, in which we held that burglary of a building under Texas Penal Code § 30.02(a)(1) qualifies as generic burglary.5 “It is a firm rule of this circuit that in the absence of an intervening contrary or superseding decision by this court sitting en banc or by the United States Supreme Court, a panel cannot overrule a prior panel’s decision.”6 Herrold has cited no intervening authority under which to reconsider Conde-Castaneda. His conviction for burglary of a building qualifies as a predicate offense for ACCA sentence enhancement.
¶10II.
¶11Herrold next argues that his conviction for burglary of a habitation cannot qualify as a predicate offense under ACCA because Texas law defines “habitation” to include “vehicles adapted for overnight use.”7 This definition, Herrold claims, covers offenses outside the scope of generic burglary, defined by the Supreme Court in Taylor v. United States as “an unlawful or unprivileged entry into, or remaining in, a building or other structure, with intent to commit a crime.”8 Herrold further contends that this Court’s decision in United States v. Silva9does not foreclose his argument. We disagree.
¶12In Silva, this Court affirmed the defendant’s enhanced sentence under ACCA *598based on three prior convictions under Texas Penal Code § 30.02, two for burglary of a habitation and one for burglary of a building.10 We concluded that burglary as defined by § 30.02 is generic burglary, explaining that
[t]he Supreme Court in Taylor stated that “if the defendant was convicted of burglary in a State where the generic definition has been adopted, with minor variations in terminology, then the trial court need find only that the state statute corresponds to the generic meaning of burglary.” ... Section 30.02 of the Texas Penal Code is a generic burglary statute, punishing nonconsensual entry into a building with intent to commit a crime. Under the reasoning of Taylor, Silva’s burglary convictions clearly indicate that he was found guilty of all the essential elements comprising generic burglary. Accordingly, Silva’s three Texas burglary convictions were sufficient predicate convictions for enhancement of his sentence pursuant to 18 U.S.C. § 924(e).11
¶13Our reasoning admittedly never explicitly stated which provision of 30.02 we were classifying as generic burglary.12 Section 30.02(a) describes three different courses of conduct:
(a) A person commits an offense if, without the effective consent of the owner, the person:
(1) enters a habitation, or a building (or any portion of a building) not then open to the public, with intent to commit a felony, theft, or an assault; or
(2) remains concealed, with intent to commit a felony, theft, or an assault, in a building or habitation; or
(3) enters a building or habitation and commits or attempts to commit a felony, theft, or an assault.
¶14Under Taylor, generic burglary requires both entry and specific intent, which are not present in subsections 2 and 3, respectively.13 Subsection 1 is the only provision that includes both. As we later clarified, Silva “could have only been referring to § 30.02(a)(1)” in holding that Texas burglary qualifies as generic burglary.14 This Court has consistently affirmed this interpretation of Silva in a series of unpublished opinions.15
¶15Herrold maintains that the court in Silva never considered the argument that Texas’s definition of habitation — by including vehicles adapted for the overnight accommodation of persons — broadens the statute beyond generic burglary. He rea*599sons that we are not “bound to follow our dicta in a prior ease in which the point now at issue was not fully debated.”16 But the holding in Silva, however imprecisely phrased, is not dictum. Our affirmance of Silva’s sentence necessarily required the determination that Texas burglary of a habitation qualified as generic burglary for purposes of ACCA. Without those two convictions, he would have had only a single qualifying previous offense. That the court in Silva did not consider the argument that Herrold now advances does not make the holding any less binding.17Silva therefore forecloses Herrold’s argument that his conviction for burglary of a habitation does not qualify as a predicate offense under ACCA.
¶16III.
¶17Finally, Herrold argues that his conviction for possession of' LSD with intent to deliver is not “a serious drug offense” under ACCA. We disagree.
¶18The ACCA definition of a “serious drug offense” includes “an offense under State law, involving manufacturing, distributing, or possessing with intent to manufacture or distribute, a controlled substance ... for which a maximum term of imprisonment of ten years or more is prescribed by law.”18 In 1992, Herrold pled guilty to “unlawful possession with intent to deliver a controlled substance” under Texas Health & Safety Code § 481.112(a). Herrold suggests that the least culpable conduct covered by the statute is the possession of drugs with intent to offer them for sale without actually offering them for sale19; he argues that such possession does not “involve” the distribution of drugs, meaning that his conviction under § 481.112(a) is not a “serious drug offense.”
¶19Herrold’s argument is unpersuasive. “The word ‘involving’ has expansive connotations,” 20 and by using it, “Congress intended the category of convictions considered a ‘serious drug offense’ to be expansive.” 21 For example, in United States v. Vickers, we held that a conviction for “delivery of a controlled substance” was a serious drug offense,22 despite the fact that someone could have been guilty by “solely ... offering to sell a controlled substance” without possessing any drugs.23 We reasoned that “[b]eing in the drug marketplace as a seller — even if, hypothet*600ically, the individual did not possess any drugs at that time” was the kind of criminal history that “Congress was reaching by the ACCA.”24
¶20Like Vickers, Herrold was in the drug market as a seller. The next step in his conduct, one he intended to take, was the completion of a drug transaction. The least culpable conduct covered by Herrold’s statute of conviction is arguably closer to the distribution chain than Vickers’s because Herrold necessarily possessed the drugs he intended to distribute. Even if he never offered the drugs for sale, Herrold’s conduct “involve[d] ... possessing with intent to ... distribute.”25 His conviction is therefore a serious drug offense under ACCA.
¶21AFFIRMED.